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12601361642 = 2139401113039
BaseRepresentation
bin10111011110001100…
…11000010011101010
31012112012200111102212
423233012120103222
5201301422033032
65442230525122
7624162543452
oct135706302352
935465614385
1012601361642
11538715a571
1225382067a2
13125a91910c
1487783ad62
154db45bbb2
hex2ef1984ea

12601361642 has 16 divisors (see below), whose sum is σ = 19085673600. Its totient is φ = 6239697600.

The previous prime is 12601361629. The next prime is 12601361681. The reversal of 12601361642 is 24616310621.

It is a junction number, because it is equal to n+sod(n) for n = 12601361599 and 12601361608.

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, 54959 + ... + 167997.

It is an arithmetic number, because the mean of its divisors is an integer number (1192854600).

Almost surely, 212601361642 is an apocalyptic number.

12601361642 is a deficient number, since it is larger than the sum of its proper divisors (6484311958).

12601361642 is a wasteful number, since it uses less digits than its factorization.

12601361642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113581.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 12601361642 in words is "twelve billion, six hundred one million, three hundred sixty-one thousand, six hundred forty-two".

Divisors: 1 2 139 278 401 802 55739 111478 113039 226078 15712421 31424842 45328639 90657278 6300680821 12601361642