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12978882762 = 233116955457
BaseRepresentation
bin11000001011001101…
…00000100011001010
31020111112001120001120
430011212200203022
5203040043222022
65543514300110
7636425453226
oct140546404312
936445046046
1012978882762
11556027179a
122622727636
1312babb9bb1
148b1a2d786
1550e67ed5c
hex3059a08ca

12978882762 has 16 divisors (see below), whose sum is σ = 26041234752. Its totient is φ = 4312382720.

The previous prime is 12978882733. The next prime is 12978882779. The reversal of 12978882762 is 26728887921.

It is a junction number, because it is equal to n+sod(n) for n = 12978882696 and 12978882705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3475863 + ... + 3479594.

It is an arithmetic number, because the mean of its divisors is an integer number (1627577172).

Almost surely, 212978882762 is an apocalyptic number.

12978882762 is an abundant number, since it is smaller than the sum of its proper divisors (13062351990).

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

12978882762 is a wasteful number, since it uses less digits than its factorization.

12978882762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6955773.

The product of its digits is 10838016, while the sum is 60.

The spelling of 12978882762 in words is "twelve billion, nine hundred seventy-eight million, eight hundred eighty-two thousand, seven hundred sixty-two".

Divisors: 1 2 3 6 311 622 933 1866 6955457 13910914 20866371 41732742 2163147127 4326294254 6489441381 12978882762