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264897925 = 5241258437
BaseRepresentation
bin11111100101000…
…00010110000101
3200110110012122021
433302200112011
51020303213200
642141403141
76364411105
oct1762402605
9613405567
10264897925
11126589806
12748694b1
1342b5a746
1427277205
15183c841a
hexfca0585

264897925 has 12 divisors (see below), whose sum is σ = 336486276. Its totient is φ = 206748800.

The previous prime is 264897917. The next prime is 264897953. The reversal of 264897925 is 529798462.

It can be written as a sum of positive squares in 6 ways, for example, as 4301476 + 260596449 = 2074^2 + 16143^2 .

It is not a de Polignac number, because 264897925 - 23 = 264897917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128194 + ... + 130243.

It is an arithmetic number, because the mean of its divisors is an integer number (28040523).

Almost surely, 2264897925 is an apocalyptic number.

264897925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

264897925 is a deficient number, since it is larger than the sum of its proper divisors (71588351).

264897925 is a wasteful number, since it uses less digits than its factorization.

264897925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258488 (or 258483 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The square root of 264897925 is about 16275.6850854273. The cubic root of 264897925 is about 642.2333473364.

The spelling of 264897925 in words is "two hundred sixty-four million, eight hundred ninety-seven thousand, nine hundred twenty-five".

Divisors: 1 5 25 41 205 1025 258437 1292185 6460925 10595917 52979585 264897925