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252627531 = 31317381037
BaseRepresentation
bin11110000111011…
…00101001001011
3122121100210211020
433003230221023
51004133040111
641022403523
76155204262
oct1703545113
9577323736
10252627531
1111a668892
12707305a3
1340452660
14257a15d9
15172a2906
hexf0eca4b

252627531 has 16 divisors (see below), whose sum is σ = 384086304. Its totient is φ = 146317824.

The previous prime is 252627517. The next prime is 252627547. The reversal of 252627531 is 135726252.

It is not a de Polignac number, because 252627531 - 26 = 252627467 is a prime.

It is a super-2 number, since 2×2526275312 = 127641338838311922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252627492 and 252627501.

It is not an unprimeable number, because it can be changed into a prime (252627131) 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, 189856 + ... + 191181.

It is an arithmetic number, because the mean of its divisors is an integer number (24005394).

Almost surely, 2252627531 is an apocalyptic number.

252627531 is a deficient number, since it is larger than the sum of its proper divisors (131458773).

252627531 is a wasteful number, since it uses less digits than its factorization.

252627531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381070.

The product of its digits is 25200, while the sum is 33.

The square root of 252627531 is about 15894.2609453853. The cubic root of 252627531 is about 632.1598256189.

The spelling of 252627531 in words is "two hundred fifty-two million, six hundred twenty-seven thousand, five hundred thirty-one".

Divisors: 1 3 13 17 39 51 221 663 381037 1143111 4953481 6477629 14860443 19432887 84209177 252627531