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22992025 = 52721372
BaseRepresentation
bin101011110110…
…1010010011001
31121021010010111
41113231102121
521341221100
62140444321
7366300100
oct127552231
947233114
1022992025
1111a84281
1278496a1
1349c0264
1430a7037
1520426ba
hex15ed499

22992025 has 27 divisors (see below), whose sum is σ = 33408669. Its totient is φ = 15650880.

The previous prime is 22992017. The next prime is 22992043. The reversal of 22992025 is 52029922.

It is a happy number.

The square root of 22992025 is 4795.

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

It can be written as a sum of positive squares in 4 ways, for example, as 67081 + 22924944 = 259^2 + 4788^2 .

It is not a de Polignac number, because 22992025 - 23 = 22992017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 167757 + ... + 167893.

Almost surely, 222992025 is an apocalyptic number.

22992025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22992025 is the 4795-th square number.

22992025 is the 2398-th centered octagonal number.

It is an amenable number.

22992025 is a deficient number, since it is larger than the sum of its proper divisors (10416644).

22992025 is an equidigital number, since it uses as much as digits as its factorization.

22992025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The cubic root of 22992025 is about 284.3538248533.

The spelling of 22992025 in words is "twenty-two million, nine hundred ninety-two thousand, twenty-five".

Divisors: 1 5 7 25 35 49 137 175 245 685 959 1225 3425 4795 6713 18769 23975 33565 93845 131383 167825 469225 656915 919681 3284575 4598405 22992025