Friday, August 18, 2017

Number of the day: 4603

Properties of the number 4603:

4603 is a cyclic number.
4603 is the 623th prime.
4603 has 21 antidivisors and 4602 totatives.
4603 has an emirp digit sum 13 in base 10.
4603 has a Fibonacci digit sum 13 in base 10.
4603 = 23022 - 23012 is the difference of 2 nonnegative squares in 1 way.
4603 is the sum of 2 positive triangular numbers.
4603 is the difference of 2 positive pentagonal numbers in 1 way.
4603 = 32 + 252 + 632 is the sum of 3 positive squares.
46032 is the sum of 3 positive squares.
4603 is a proper divisor of 1793 - 1.
4603 is an emirp in (at least) the following bases: 4, 13, 17, 19, 22, 24, 29, 33, 35, 37, 38, 49, 50, 51, 55, 65, 67, 71, 75, 77, 78, 81, 83, 86, 93, 95, and 96.
4603 is palindromic in (at least) the following bases: 43, 59, -40, -46, and -78.
4603 in base 17 = ffd and consists of only the digits 'd' and 'f'.
4603 in base 39 = 311 and consists of only the digits '1' and '3'.
4603 in base 42 = 2PP and consists of only the digits '2' and 'P'.
4603 in base 43 = 2L2 and consists of only the digits '2' and 'L'.
4603 in base 58 = 1LL and consists of only the digits '1' and 'L'.
4603 in base 59 = 1J1 and consists of only the digits '1' and 'J'.

The number 4603 belongs to the following On-Line Encyclopedia of Integer Sequences (OEIS) sequences (among others):

Sequence numbers and descriptions below are taken from OEIS.
A031936: Lower prime of a difference of 18 between consecutive primes.
A056108: Fourth spoke of a hexagonal spiral.
A066540: The first of two consecutive primes with equal digital sums.
A095673: Primes p = p_(n+1) such that p_n + p_(n+2) = 2*p_(n+1) + 12.
A100201: Primes of the form 23n+3.
A104824: Primes from merging of 4 successive digits in decimal expansion of Pi.
A113743: Generalized Mancala solitaire (A002491); to get n-th term, start with n and successively round up to next 6 multiples of n-1, n-2, ..., 1.
A198164: Primes from merging of 4 successive digits in decimal expansion of sqrt(2).
A272160: Primes of the form abs(8n^2 - 488n + 7243) in order of increasing nonnegative values of n.
A275183: T(n,k)=Number of nXk 0..2 arrays with no element equal to any value at offset (-2,-1) (-1,0) or (-1,1) and new values introduced in order 0..2.

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