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252715893 = 3671257293
BaseRepresentation
bin11110001000000…
…10001101110101
3122121112022000220
433010002031311
51004143402033
641024324553
76156023013
oct1704021565
9577468026
10252715893
1111a719211
1270773759
1340483941
14257c58b3
15172bdbb3
hexf102375

252715893 has 8 divisors (see below), whose sum is σ = 341983968. Its totient is φ = 165962544.

The previous prime is 252715891. The next prime is 252715907. The reversal of 252715893 is 398517252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 252715893 - 21 = 252715891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252715891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628446 + ... + 628847.

It is an arithmetic number, because the mean of its divisors is an integer number (42747996).

Almost surely, 2252715893 is an apocalyptic number.

It is an amenable number.

252715893 is a deficient number, since it is larger than the sum of its proper divisors (89268075).

252715893 is a wasteful number, since it uses less digits than its factorization.

252715893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257363.

The product of its digits is 151200, while the sum is 42.

The square root of 252715893 is about 15897.0403849270. The cubic root of 252715893 is about 632.2335209323.

The spelling of 252715893 in words is "two hundred fifty-two million, seven hundred fifteen thousand, eight hundred ninety-three".

Divisors: 1 3 67 201 1257293 3771879 84238631 252715893