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252752111 = 283893117
BaseRepresentation
bin11110001000010…
…11000011101111
3122121121010201022
433010023003233
51004201031421
641025204355
76156233423
oct1704130357
9577533638
10252752111
1111a743447
12707906bb
1340497281
14257d4b83
15172c97ab
hexf10b0ef

252752111 has 4 divisors (see below), whose sum is σ = 253645512. Its totient is φ = 251858712.

The previous prime is 252752099. The next prime is 252752147. The reversal of 252752111 is 111257252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252752111 - 214 = 252735727 is a prime.

It is a super-2 number, since 2×2527521112 = 127767259229912642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252752161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446276 + ... + 446841.

It is an arithmetic number, because the mean of its divisors is an integer number (63411378).

Almost surely, 2252752111 is an apocalyptic number.

252752111 is a deficient number, since it is larger than the sum of its proper divisors (893401).

252752111 is an equidigital number, since it uses as much as digits as its factorization.

252752111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893400.

The product of its digits is 1400, while the sum is 26.

The square root of 252752111 is about 15898.1794869727. The cubic root of 252752111 is about 632.2637223567.

The spelling of 252752111 in words is "two hundred fifty-two million, seven hundred fifty-two thousand, one hundred eleven".

Divisors: 1 283 893117 252752111