Thursday, August 4, 2022

Number of the day: 48808

William Rowan Hamilton was born on this day 217 years ago.

John Venn was born on this day 188 years ago.

Properties of the number 48808:

48808 = 23 × 6101 is the 43789th composite number and is not squarefree.
48808 has 2 distinct prime factors, 8 divisors, 13 antidivisors and 24400 totatives.
48808 has a triangular digit sum 28 in base 10.
48808 = 122032 - 122012 = 61032 - 60992 is the difference of 2 nonnegative squares in 2 ways.
48808 is the sum of 2 positive triangular numbers.
48808 is the difference of 2 positive pentagonal numbers in 2 ways.
48808 = 982 + 1982 is the sum of 2 positive squares in 1 way.
48808 = 82 + 1502 + 1622 is the sum of 3 positive squares.
488082 = 296002 + 388082 is the sum of 2 positive squares in 1 way.
488082 is the sum of 3 positive squares.
48808 is a proper divisor of 172310 - 1.
48808 is palindromic in (at least) the following bases: 47, -57, -59, and -80.
48808 in base 47 = M4M and consists of only the digits '4' and 'M'.

The number 48808 belongs to the following On-Line Encyclopedia of Integer Sequences (OEIS) sequences (among others):

Sequence numbers and descriptions below are taken from OEIS.
A175103: Integers n such that 17+30*n are terms in A172456.
A248488: Number of length n+5 0..7 arrays with some three disjoint pairs in each consecutive six terms having the same sum.
A248493: Number of length 4+5 0..n arrays with some three disjoint pairs in each consecutive six terms having the same sum

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