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252762131 = 1271990253
BaseRepresentation
bin11110001000011…
…01100000010011
3122121121122110102
433010031200103
51004201342011
641025323015
76156304556
oct1704154023
9577548412
10252762131
1111a74aa26
127079646b
134049b9bb
14257d869d
15172cc73b
hexf10d813

252762131 has 4 divisors (see below), whose sum is σ = 254752512. Its totient is φ = 250771752.

The previous prime is 252762119. The next prime is 252762143. The reversal of 252762131 is 131267252.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (252762119) and next prime (252762143).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-252762131 is a prime.

It is a super-2 number, since 2×2527621312 = 127777389735322322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252762094 and 252762103.

It is not an unprimeable number, because it can be changed into a prime (252762031) 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, 995000 + ... + 995253.

It is an arithmetic number, because the mean of its divisors is an integer number (63688128).

Almost surely, 2252762131 is an apocalyptic number.

252762131 is a deficient number, since it is larger than the sum of its proper divisors (1990381).

252762131 is a wasteful number, since it uses less digits than its factorization.

252762131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990380.

The product of its digits is 5040, while the sum is 29.

The square root of 252762131 is about 15898.4946142709. The cubic root of 252762131 is about 632.2720773134.

The spelling of 252762131 in words is "two hundred fifty-two million, seven hundred sixty-two thousand, one hundred thirty-one".

Divisors: 1 127 1990253 252762131