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252274431 = 3716311877
BaseRepresentation
bin11110000100101…
…10011011111111
3122120200212110110
433002112123333
51004040240211
641011041103
76152203653
oct1702263377
9576625413
10252274431
1111a447572
12705a0193
134035aa16
142570ca63
1517232ea6
hexf0966ff

252274431 has 16 divisors (see below), whose sum is σ = 341826048. Its totient is φ = 165463200.

The previous prime is 252274409. The next prime is 252274439. The reversal of 252274431 is 134472252.

It is not a de Polignac number, because 252274431 - 26 = 252274367 is a prime.

It is a super-2 number, since 2×2522744312 = 127284777072747522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252274439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133465 + ... + 135341.

It is an arithmetic number, because the mean of its divisors is an integer number (21364128).

Almost surely, 2252274431 is an apocalyptic number.

252274431 is a deficient number, since it is larger than the sum of its proper divisors (89551617).

252274431 is a wasteful number, since it uses less digits than its factorization.

252274431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2582.

The product of its digits is 13440, while the sum is 30.

The square root of 252274431 is about 15883.1492784019. The cubic root of 252274431 is about 631.8651629440.

The spelling of 252274431 in words is "two hundred fifty-two million, two hundred seventy-four thousand, four hundred thirty-one".

Divisors: 1 3 71 213 631 1877 1893 5631 44801 133267 134403 399801 1184387 3553161 84091477 252274431