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230112311312 = 24132149351473
BaseRepresentation
bin1101011001001111000…
…0110011100000010000
3210222221220220121000202
43112103300303200100
512232232222430222
6253413453234332
722424253242042
oct3262360634020
9728856817022
10230112311312
11896544453a4
12387201929a8
1318912a48670
14b1cd403a92
155ebbd85892
hex3593c33810

230112311312 has 40 divisors (see below), whose sum is σ = 480169855704. Its totient is φ = 106198677504.

The previous prime is 230112311269. The next prime is 230112311357. The reversal of 230112311312 is 213113211032.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13716157456 + 216396153856 = 117116^2 + 465184^2 .

It is a super-2 number, since 2×2301123113122 (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4444808 + ... + 4496280.

Almost surely, 2230112311312 is an apocalyptic number.

It is an amenable number.

230112311312 is an abundant number, since it is smaller than the sum of its proper divisors (250057544392).

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

230112311312 is a wasteful number, since it uses less digits than its factorization.

230112311312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72987 (or 72981 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 230112311312 its reverse (213113211032), we get a palindrome (443225522344).

The spelling of 230112311312 in words is "two hundred thirty billion, one hundred twelve million, three hundred eleven thousand, three hundred twelve".

Divisors: 1 2 4 8 13 16 26 52 104 208 21493 42986 51473 85972 102946 171944 205892 279409 343888 411784 558818 669149 823568 1117636 1338298 2235272 2676596 4470544 5353192 10706384 1106309189 2212618378 4425236756 8850473512 14382019457 17700947024 28764038914 57528077828 115056155656 230112311312