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12924145 = 513198833
BaseRepresentation
bin110001010011…
…010011110001
3220022121121001
4301103103301
511302033040
61141002001
7214565503
oct61232361
926277531
1012924145
117328113
1243b3301
1328a6830
141a05d73
15120459a
hexc534f1

12924145 has 8 divisors (see below), whose sum is σ = 16702056. Its totient is φ = 9543936.

The previous prime is 12924133. The next prime is 12924157. The reversal of 12924145 is 54142921.

12924145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12924133) and next prime (12924157).

It can be written as a sum of positive squares in 4 ways, for example, as 484416 + 12439729 = 696^2 + 3527^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12924145 - 27 = 12924017 is a prime.

It is a Duffinian 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, 99352 + ... + 99481.

It is an arithmetic number, because the mean of its divisors is an integer number (2087757).

Almost surely, 212924145 is an apocalyptic number.

It is an amenable number.

12924145 is a deficient number, since it is larger than the sum of its proper divisors (3777911).

12924145 is a wasteful number, since it uses less digits than its factorization.

12924145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198851.

The product of its digits is 2880, while the sum is 28.

The square root of 12924145 is about 3595.0166898083. The cubic root of 12924145 is about 234.6752417647.

It can be divided in two parts, 129241 and 45, that added together give a triangular number (129286 = T508).

The spelling of 12924145 in words is "twelve million, nine hundred twenty-four thousand, one hundred forty-five".

Divisors: 1 5 13 65 198833 994165 2584829 12924145