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252605151 = 3256349853
BaseRepresentation
bin11110000111001…
…11001011011111
3122121022200010100
433003213023133
51004131331101
641022112143
76155052111
oct1703471337
9577280110
10252605151
1111a652a97
127071b653
1340445406
14257973b1
151729ae86
hexf0e72df

252605151 has 12 divisors (see below), whose sum is σ = 365529528. Its totient is φ = 168100944.

The previous prime is 252605123. The next prime is 252605161. The reversal of 252605151 is 151506252.

252605151 is a `hidden beast` number, since 2 + 5 + 2 + 605 + 1 + 51 = 666.

It is not a de Polignac number, because 252605151 - 210 = 252604127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252605161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19860 + ... + 29993.

It is an arithmetic number, because the mean of its divisors is an integer number (30460794).

Almost surely, 2252605151 is an apocalyptic number.

252605151 is a deficient number, since it is larger than the sum of its proper divisors (112924377).

252605151 is a wasteful number, since it uses less digits than its factorization.

252605151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50422 (or 50419 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 252605151 is about 15893.5569020909. The cubic root of 252605151 is about 632.1411576157.

The spelling of 252605151 in words is "two hundred fifty-two million, six hundred five thousand, one hundred fifty-one".

Divisors: 1 3 9 563 1689 5067 49853 149559 448677 28067239 84201717 252605151