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12920964082 = 213496960157
BaseRepresentation
bin11000000100010011…
…00100001111110010
31020100111001222120021
430002021210033302
5202430231322312
65534045034054
7635123245135
oct140211441762
936314058507
1012920964082
115530602614
12260725592a
1312abbbb3a0
148a807421c
1550953dc07
hex3022643f2

12920964082 has 8 divisors (see below), whose sum is σ = 20872326636. Its totient is φ = 5963521872.

The previous prime is 12920964061. The next prime is 12920964101. The reversal of 12920964082 is 28046902921.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10887044281 + 2033919801 = 104341^2 + 45099^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248480053 + ... + 248480104.

Almost surely, 212920964082 is an apocalyptic number.

12920964082 is a deficient number, since it is larger than the sum of its proper divisors (7951362554).

12920964082 is a wasteful number, since it uses less digits than its factorization.

12920964082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496960172.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 12920964082 in words is "twelve billion, nine hundred twenty million, nine hundred sixty-four thousand, eighty-two".

Divisors: 1 2 13 26 496960157 993920314 6460482041 12920964082