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230892857 = 1353335113
BaseRepresentation
bin11011100001100…
…10010100111001
3121002110120110022
431300302110321
5433102032412
634524500225
75502362006
oct1560622471
9532416408
10230892857
11109373248
12653aa675
1338ab27c0
14229448ad
151540ca72
hexdc32539

230892857 has 8 divisors (see below), whose sum is σ = 253346184. Its totient is φ = 209109888.

The previous prime is 230892841. The next prime is 230892887. The reversal of 230892857 is 758298032.

230892857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2399401 + 228493456 = 1549^2 + 15116^2 .

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

It is not a de Polignac number, because 230892857 - 24 = 230892841 is a prime.

It is a super-2 number, since 2×2308928572 = 106623022827244898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (230892887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166868 + ... + 168245.

It is an arithmetic number, because the mean of its divisors is an integer number (31668273).

Almost surely, 2230892857 is an apocalyptic number.

It is an amenable number.

230892857 is a deficient number, since it is larger than the sum of its proper divisors (22453327).

230892857 is a wasteful number, since it uses less digits than its factorization.

230892857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335179.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 230892857 is about 15195.1589988391. The cubic root of 230892857 is about 613.4843653406.

The spelling of 230892857 in words is "two hundred thirty million, eight hundred ninety-two thousand, eight hundred fifty-seven".

Divisors: 1 13 53 689 335113 4356469 17760989 230892857