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252045057 = 3112694339
BaseRepresentation
bin11110000010111…
…10011100000001
3122120021012211010
433001132130001
51004010420212
641002111133
76150230145
oct1701363401
9576235733
10252045057
1111a300200
12704ab4a9
13402aa4b4
142568d225
15171da03c
hexf05e701

252045057 has 12 divisors (see below), whose sum is σ = 369388880. Its totient is φ = 152754360.

The previous prime is 252045011. The next prime is 252045113. The reversal of 252045057 is 750540252.

It is not a de Polignac number, because 252045057 - 26 = 252044993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252045457) by changing a digit.

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, 346807 + ... + 347532.

Almost surely, 2252045057 is an apocalyptic number.

It is an amenable number.

252045057 is a deficient number, since it is larger than the sum of its proper divisors (117343823).

252045057 is a wasteful number, since it uses less digits than its factorization.

252045057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694364 (or 694353 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 252045057 is about 15875.9269650625. The cubic root of 252045057 is about 631.6736025242.

The spelling of 252045057 in words is "two hundred fifty-two million, forty-five thousand, fifty-seven".

Divisors: 1 3 11 33 121 363 694339 2083017 7637729 22913187 84015019 252045057