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231088008 = 23329615443
BaseRepresentation
bin11011100011000…
…01111110001000
3121002211111011010
431301201332020
5433124304013
634533003520
75504133654
oct1561417610
9532744133
10231088008
11109496928
12654835a0
1338b50588
1422995a64
151544a7c3
hexdc61f88

231088008 has 64 divisors (see below), whose sum is σ = 607550400. Its totient is φ = 73140480.

The previous prime is 231088001. The next prime is 231088009. The reversal of 231088008 is 800880132.

231088008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231088001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39735 + ... + 45177.

It is an arithmetic number, because the mean of its divisors is an integer number (9492975).

Almost surely, 2231088008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231088008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303775200).

231088008 is an abundant number, since it is smaller than the sum of its proper divisors (376462392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231088008 is a wasteful number, since it uses less digits than its factorization.

231088008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5542 (or 5538 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 231088008 is about 15201.5791284985. The cubic root of 231088008 is about 613.6571559803.

The spelling of 231088008 in words is "two hundred thirty-one million, eighty-eight thousand, eight".

Divisors: 1 2 3 4 6 8 12 24 29 58 61 87 116 122 174 183 232 244 348 366 488 696 732 1464 1769 3538 5307 5443 7076 10614 10886 14152 16329 21228 21772 32658 42456 43544 65316 130632 157847 315694 332023 473541 631388 664046 947082 996069 1262776 1328092 1894164 1992138 2656184 3788328 3984276 7968552 9628667 19257334 28886001 38514668 57772002 77029336 115544004 231088008