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12930565 = 53183423
BaseRepresentation
bin110001010100…
…111000000101
3220022221101211
4301110320011
511302234230
61141051421
7214623304
oct61247005
926287354
1012930565
117331a1a
1243b6b71
1328a972b
141a0843b
15120642a
hexc54e05

12930565 has 8 divisors (see below), whose sum is σ = 16017408. Its totient is φ = 10010640.

The previous prime is 12930551. The next prime is 12930571. The reversal of 12930565 is 56503921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12930565 - 213 = 12922373 is a prime.

It is a super-2 number, since 2×129305652 = 334399022438450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

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 7 ways as a sum of consecutive naturals, for example, 41557 + ... + 41866.

It is an arithmetic number, because the mean of its divisors is an integer number (2002176).

Almost surely, 212930565 is an apocalyptic number.

It is an amenable number.

12930565 is a deficient number, since it is larger than the sum of its proper divisors (3086843).

12930565 is an equidigital number, since it uses as much as digits as its factorization.

12930565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83459.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 12930565 is about 3595.9094816194. The cubic root of 12930565 is about 234.7140932233.

The spelling of 12930565 in words is "twelve million, nine hundred thirty thousand, five hundred sixty-five".

Divisors: 1 5 31 155 83423 417115 2586113 12930565