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230692881 = 376897627
BaseRepresentation
bin11011100000000…
…01100000010001
3121002002102010210
431300001200101
5433024133011
634520314333
75500566666
oct1560014021
9532072123
10230692881
11109246a81
12653129a9
1338a42783
14228d1a6d
15153bd6a6
hexdc01811

230692881 has 4 divisors (see below), whose sum is σ = 307590512. Its totient is φ = 153795252.

The previous prime is 230692867. The next prime is 230692901. The reversal of 230692881 is 188296032.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 230692881 - 25 = 230692849 is a prime.

It is a super-2 number, since 2×2306928812 = 106438410688160322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230692801) 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, 38448811 + ... + 38448816.

It is an arithmetic number, because the mean of its divisors is an integer number (76897628).

Almost surely, 2230692881 is an apocalyptic number.

It is an amenable number.

230692881 is a deficient number, since it is larger than the sum of its proper divisors (76897631).

230692881 is an equidigital number, since it uses as much as digits as its factorization.

230692881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76897630.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 230692881 is about 15188.5773198150. The cubic root of 230692881 is about 613.3072015161.

The spelling of 230692881 in words is "two hundred thirty million, six hundred ninety-two thousand, eight hundred eighty-one".

Divisors: 1 3 76897627 230692881