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12901861359892 = 224319837613101
BaseRepresentation
bin1011101110111111001011…
…0111010000000100010100
31200200101221220100001210001
42323233302313100010110
53142341003002004032
643235011104541044
72501062103050201
oct273576267200424
950611856301701
1012901861359892
11412471542895a
121544573321784
137278429a097b
1432864c290ca8
15175918a763e7
hexbbbf2dd0114

12901861359892 has 24 divisors (see below), whose sum is σ = 22653668120832. Its totient is φ = 6429415212000.

The previous prime is 12901861359853. The next prime is 12901861359917. The reversal of 12901861359892 is 29895316810921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2111859 + ... + 5501242.

It is an arithmetic number, because the mean of its divisors is an integer number (943902838368).

Almost surely, 212901861359892 is an apocalyptic number.

It is an amenable number.

12901861359892 is a deficient number, since it is larger than the sum of its proper divisors (9751806760940).

12901861359892 is a wasteful number, since it uses less digits than its factorization.

12901861359892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7614519 (or 7614517 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 64.

The spelling of 12901861359892 in words is "twelve trillion, nine hundred one billion, eight hundred sixty-one million, three hundred fifty-nine thousand, eight hundred ninety-two".

Divisors: 1 2 4 431 862 983 1724 1966 3932 423673 847346 1694692 7613101 15226202 30452404 3281246531 6562493062 7483678283 13124986124 14967356566 29934713132 3225465339973 6450930679946 12901861359892