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230432312 = 231111323173
BaseRepresentation
bin11011011110000…
…01111000111000
3121001121011201002
431233001320320
5432442313222
634510544132
75465433215
oct1557017070
9531534632
10230432312
11109089230
1265208048
1338980ca6
1422864b0c
151536b392
hexdbc1e38

230432312 has 32 divisors (see below), whose sum is σ = 475530480. Its totient is φ = 103810560.

The previous prime is 230432309. The next prime is 230432317. The reversal of 230432312 is 213234032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230432317) 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, 1643 + ... + 21530.

Almost surely, 2230432312 is an apocalyptic number.

230432312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

230432312 is an abundant number, since it is smaller than the sum of its proper divisors (245098168).

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

230432312 is a wasteful number, since it uses less digits than its factorization.

230432312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23303 (or 23299 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 230432312 is about 15179.9971014490. The cubic root of 230432312 is about 613.0762031289.

Adding to 230432312 its reverse (213234032), we get a palindrome (443666344).

The spelling of 230432312 in words is "two hundred thirty million, four hundred thirty-two thousand, three hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 113 226 452 904 1243 2486 4972 9944 23173 46346 92692 185384 254903 509806 1019612 2039224 2618549 5237098 10474196 20948392 28804039 57608078 115216156 230432312