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252116187 = 31937173691
BaseRepresentation
bin11110000011011…
…11110011011011
3122120101211101120
433001233303123
51004020204222
641003420323
76150644421
oct1701576333
9576354346
10252116187
1111a349694
12705246a3
134030399b
14256ab111
151720115c
hexf06fcdb

252116187 has 32 divisors (see below), whose sum is σ = 366040320. Its totient is φ = 153809280.

The previous prime is 252116153. The next prime is 252116201. The reversal of 252116187 is 781611252.

It is not a de Polignac number, because 252116187 - 28 = 252115931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252116147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 364512 + ... + 365202.

It is an arithmetic number, because the mean of its divisors is an integer number (11438760).

Almost surely, 2252116187 is an apocalyptic number.

252116187 is a deficient number, since it is larger than the sum of its proper divisors (113924133).

252116187 is a wasteful number, since it uses less digits than its factorization.

252116187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923.

The product of its digits is 6720, while the sum is 33.

The square root of 252116187 is about 15878.1669911864. The cubic root of 252116187 is about 631.7330187754.

The spelling of 252116187 in words is "two hundred fifty-two million, one hundred sixteen thousand, one hundred eighty-seven".

Divisors: 1 3 19 37 57 111 173 519 691 703 2073 2109 3287 6401 9861 13129 19203 25567 39387 76701 119543 121619 358629 364857 485773 1457319 2271317 4423091 6813951 13269273 84038729 252116187