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12924025 = 527192
BaseRepresentation
bin110001010011…
…010001111001
3220022121102121
4301103101321
511302032100
61141001241
7214565242
oct61232171
926277377
1012924025
117328014
1243b3221
1328a676a
141a05cc9
15120451a
hexc53479

12924025 has 9 divisors (see below), whose sum is σ = 16048111. Its totient is φ = 10324840.

The previous prime is 12924017. The next prime is 12924031. The reversal of 12924025 is 52042921.

The square root of 12924025 is 3595.

It is a perfect power (a square), and thus also a powerful number.

12924025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4652649 + 8271376 = 2157^2 + 2876^2 .

It is not a de Polignac number, because 12924025 - 23 = 12924017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17616 + ... + 18334.

Almost surely, 212924025 is an apocalyptic number.

12924025 is the 3595-th square number.

12924025 is the 1798-th centered octagonal number.

It is an amenable number.

12924025 is a deficient number, since it is larger than the sum of its proper divisors (3124086).

12924025 is an frugal number, since it uses more digits than its factorization.

12924025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The cubic root of 12924025 is about 234.6745154468.

Multiplying 12924025 by its sum of digits (25), we get a square (323100625 = 179752).

12924025 divided by its sum of digits (25) gives a square (516961 = 7192).

Adding to 12924025 its reverse (52042921), we get a palindrome (64966946).

The spelling of 12924025 in words is "twelve million, nine hundred twenty-four thousand, twenty-five".

Divisors: 1 5 25 719 3595 17975 516961 2584805 12924025