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12312322984 = 2313191619831
BaseRepresentation
bin10110111011101111…
…10010001110101000
31011210001210210221101
423131313302032220
5200203423313414
65353423451144
7614053006243
oct133567621650
934701723841
1012312322984
115248a92545
122477456ab4
131212a88620
1484b2bc25a
154c0db5a74
hex2dddf23a8

12312322984 has 32 divisors (see below), whose sum is σ = 24991626240. Its totient is φ = 5652849600.

The previous prime is 12312322963. The next prime is 12312323033. The reversal of 12312322984 is 48922321321.

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, 290052 + ... + 329779.

It is an arithmetic number, because the mean of its divisors is an integer number (780988320).

Almost surely, 212312322984 is an apocalyptic number.

It is an amenable number.

12312322984 is an abundant number, since it is smaller than the sum of its proper divisors (12679303256).

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

12312322984 is a wasteful number, since it uses less digits than its factorization.

12312322984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620041 (or 620037 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The spelling of 12312322984 in words is "twelve billion, three hundred twelve million, three hundred twenty-two thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 13 26 52 104 191 382 764 1528 2483 4966 9932 19864 619831 1239662 2479324 4958648 8057803 16115606 32231212 64462424 118387721 236775442 473550884 947101768 1539040373 3078080746 6156161492 12312322984