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252510772 = 22292176817
BaseRepresentation
bin11110000110100…
…00001000110100
3122121010212122211
433003100020310
51004120321042
641020103204
76154210003
oct1703201064
9577125584
10252510772
1111a599098
1270694b04
1340411477
1425770c3a
151727d017
hexf0d0234

252510772 has 12 divisors (see below), whose sum is σ = 457131780. Its totient is φ = 121901696.

The previous prime is 252510733. The next prime is 252510773. The reversal of 252510772 is 277015252.

It can be written as a sum of positive squares in 2 ways, for example, as 92083216 + 160427556 = 9596^2 + 12666^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252510773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1088293 + ... + 1088524.

It is an arithmetic number, because the mean of its divisors is an integer number (38094315).

Almost surely, 2252510772 is an apocalyptic number.

It is an amenable number.

252510772 is a deficient number, since it is larger than the sum of its proper divisors (204621008).

252510772 is a wasteful number, since it uses less digits than its factorization.

252510772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176850 (or 2176848 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 252510772 is about 15890.5875284711. The cubic root of 252510772 is about 632.0624203957.

The spelling of 252510772 in words is "two hundred fifty-two million, five hundred ten thousand, seven hundred seventy-two".

Divisors: 1 2 4 29 58 116 2176817 4353634 8707268 63127693 126255386 252510772