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15345085 = 57262633
BaseRepresentation
bin111010100010…
…010110111101
31001212121111111
4322202112331
512412020320
61304522021
7244300600
oct72422675
931777444
1015345085
118730a98
125180311
133243742
142076337
151531a5a
hexea25bd

15345085 has 12 divisors (see below), whose sum is σ = 21420828. Its totient is φ = 10522176.

The previous prime is 15345079. The next prime is 15345091. The reversal of 15345085 is 58054351.

It is an interprime number because it is at equal distance from previous prime (15345079) and next prime (15345091).

It can be written as a sum of positive squares in 2 ways, for example, as 4149369 + 11195716 = 2037^2 + 3346^2 .

It is not a de Polignac number, because 15345085 - 25 = 15345053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31072 + ... + 31561.

It is an arithmetic number, because the mean of its divisors is an integer number (1785069).

Almost surely, 215345085 is an apocalyptic number.

It is an amenable number.

15345085 is a deficient number, since it is larger than the sum of its proper divisors (6075743).

15345085 is an equidigital number, since it uses as much as digits as its factorization.

15345085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62652 (or 62645 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 15345085 is about 3917.2803065392. The cubic root of 15345085 is about 248.4981154390.

The spelling of 15345085 in words is "fifteen million, three hundred forty-five thousand, eighty-five".

Divisors: 1 5 7 35 49 245 62633 313165 438431 2192155 3069017 15345085