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252045297 = 3372575189
BaseRepresentation
bin11110000010111…
…10011111110001
3122120021020011000
433001132133301
51004010422142
641002112213
76150230640
oct1701363761
9576236130
10252045297
1111a3003a9
12704ab669
13402aa63a
142568d357
15171da14c
hexf05e7f1

252045297 has 32 divisors (see below), whose sum is σ = 428486400. Its totient is φ = 143437824.

The previous prime is 252045259. The next prime is 252045307. The reversal of 252045297 is 792540252.

It is a happy number.

252045297 is a `hidden beast` number, since 2 + 520 + 45 + 2 + 97 = 666.

It is not a de Polignac number, because 252045297 - 215 = 252012529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252045797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45979 + ... + 51167.

It is an arithmetic number, because the mean of its divisors is an integer number (13390200).

Almost surely, 2252045297 is an apocalyptic number.

252045297 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

252045297 is a deficient number, since it is larger than the sum of its proper divisors (176441103).

252045297 is a wasteful number, since it uses less digits than its factorization.

252045297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5462 (or 5456 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 252045297 is about 15875.9345236745. The cubic root of 252045297 is about 631.6738030195.

The spelling of 252045297 in words is "two hundred fifty-two million, forty-five thousand, two hundred ninety-seven".

Divisors: 1 3 7 9 21 27 63 189 257 771 1799 2313 5189 5397 6939 15567 16191 36323 46701 48573 108969 140103 326907 980721 1333573 4000719 9335011 12002157 28005033 36006471 84015099 252045297