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23231113412 = 22136712175479
BaseRepresentation
bin10101101000101011…
…101010100011000100
32012222000102211120212
4111220223222203010
5340034131112122
614401111214552
71451455130423
oct255053524304
965860384525
1023231113412
1199413a3391
124604077458
132262c1b170
1411a548d2ba
1590e762ce2
hex568aea8c4

23231113412 has 48 divisors (see below), whose sum is σ = 44479800960. Its totient is φ = 10551416832.

The previous prime is 23231113391. The next prime is 23231113417. The reversal of 23231113412 is 21431113232.

It is a super-2 number, since 2×232311134122 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23231113417) 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, 4237289 + ... + 4242767.

It is an arithmetic number, because the mean of its divisors is an integer number (926662520).

Almost surely, 223231113412 is an apocalyptic number.

It is an amenable number.

23231113412 is a deficient number, since it is larger than the sum of its proper divisors (21248687548).

23231113412 is a wasteful number, since it uses less digits than its factorization.

23231113412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6780 (or 6778 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 23231113412 its reverse (21431113232), we get a palindrome (44662226644).

The spelling of 23231113412 in words is "twenty-three billion, two hundred thirty-one million, one hundred thirteen thousand, four hundred twelve".

Divisors: 1 2 4 13 26 52 67 134 268 871 1217 1742 2434 3484 4868 5479 10958 15821 21916 31642 63284 71227 81539 142454 163078 284908 326156 367093 734186 1060007 1468372 2120014 4240028 4772209 6667943 9544418 13335886 19088836 26671772 86683259 173366518 346733036 446752181 893504362 1787008724 5807778353 11615556706 23231113412