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231312414412 = 22372815561999
BaseRepresentation
bin1101011101101101001…
…0110101011011001100
3211010001120010010222201
43113123102311123030
512242211434230122
6254132523451244
722466065036642
oct3273322653314
9733046103881
10231312414412
118a10a911642
12389b6086b24
1318a74577a41
14b2a495d192
15603c3e1a27
hex35db4b56cc

231312414412 has 24 divisors (see below), whose sum is σ = 417216744000. Its totient is φ = 112129879680.

The previous prime is 231312414409. The next prime is 231312414427. The reversal of 231312414412 is 214414213132.

It is a happy number.

It is a super-2 number, since 2×2313124144122 (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, 2739412 + ... + 2822587.

It is an arithmetic number, because the mean of its divisors is an integer number (17384031000).

Almost surely, 2231312414412 is an apocalyptic number.

It is an amenable number.

231312414412 is a deficient number, since it is larger than the sum of its proper divisors (185904329588).

231312414412 is a wasteful number, since it uses less digits than its factorization.

231312414412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5562321 (or 5562319 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

Adding to 231312414412 its reverse (214414213132), we get a palindrome (445726627544).

The spelling of 231312414412 in words is "two hundred thirty-one billion, three hundred twelve million, four hundred fourteen thousand, four hundred twelve".

Divisors: 1 2 4 37 74 148 281 562 1124 10397 20794 41588 5561999 11123998 22247996 205793963 411587926 823175852 1562921719 3125843438 6251686876 57828103603 115656207206 231312414412