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252393271 = 13175412111
BaseRepresentation
bin11110000101100…
…11011100110111
3122120220220110221
433002303130313
51004103041041
641013355211
76153210304
oct1702633467
9576826427
10252393271
1111a518889
1270638b07
134039cb40
14257400ab
15172582d1
hexf0b3737

252393271 has 16 divisors (see below), whose sum is σ = 288465408. Its totient is φ = 218764800.

The previous prime is 252393269. The next prime is 252393287. The reversal of 252393271 is 172393252.

It is a cyclic number.

It is not a de Polignac number, because 252393271 - 21 = 252393269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252393571) 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 15 ways as a sum of consecutive naturals, for example, 118506 + ... + 120616.

It is an arithmetic number, because the mean of its divisors is an integer number (18029088).

Almost surely, 2252393271 is an apocalyptic number.

252393271 is a deficient number, since it is larger than the sum of its proper divisors (36072137).

252393271 is a wasteful number, since it uses less digits than its factorization.

252393271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682.

The product of its digits is 22680, while the sum is 34.

The square root of 252393271 is about 15886.8899096079. The cubic root of 252393271 is about 631.9643658473.

The spelling of 252393271 in words is "two hundred fifty-two million, three hundred ninety-three thousand, two hundred seventy-one".

Divisors: 1 13 17 221 541 2111 7033 9197 27443 35887 119561 466531 1142051 14846663 19414867 252393271