Friday, July 24, 2020

Number of the day: 367815

Properties of the number 367815:

367815 = 3 × 5 × 7 × 31 × 113 is the 336445th composite number and is squarefree.
367815 has 5 distinct prime factors, 32 divisors, 39 antidivisors and 161280 totatives.
367815 has a sphenic digit sum 30 in base 10.
367815 has an oblong digit sum 30 in base 10.
367815 is the difference of 2 nonnegative squares in 16 ways.
367815 is the difference of 2 positive pentagonal numbers in 5 ways.
367815 is not the sum of 3 positive squares.
3678152 = 2206892 + 2942522 = 1796762 + 3209432 = 2577962 + 2623532 = 488252 + 3645602 is the sum of 2 positive squares in 4 ways.
3678152 is the sum of 3 positive squares.
367815 is a proper divisor of 21112 - 1.
367815 = '36781' + '5' is the concatenation of 2 prime numbers.
367815 is palindromic in (at least) the following bases: 96, and -77.

The number 367815 belongs to the following On-Line Encyclopedia of Integer Sequences (OEIS) sequence (among others):

Sequence number and description below are taken from OEIS.
A230498: a(n) is the minimal odd odious k>1, such that k^i, i=2,...,n, all are evil, and a(n)=0, if there is no such k.

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