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12979011143 = 73089600241
BaseRepresentation
bin11000001011001101…
…11111111001000111
31020111112022002011102
430011212333321013
5203040111324033
65543521130315
7636426526430
oct140546777107
936445262142
1012979011143
11556034a19a
12262278999b
1312bac33467
148b1a64487
1550e6a7de8
hex3059bfe47

12979011143 has 8 divisors (see below), whose sum is σ = 14837982240. Its totient is φ = 11121246720.

The previous prime is 12979011139. The next prime is 12979011181. The reversal of 12979011143 is 34111097921.

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

It is a cyclic number.

It is not a de Polignac number, because 12979011143 - 22 = 12979011139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12979011097 and 12979011106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12979016143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278498 + ... + 321743.

It is an arithmetic number, because the mean of its divisors is an integer number (1854747780).

Almost surely, 212979011143 is an apocalyptic number.

12979011143 is a deficient number, since it is larger than the sum of its proper divisors (1858971097).

12979011143 is an equidigital number, since it uses as much as digits as its factorization.

12979011143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603337.

The product of its (nonzero) digits is 13608, while the sum is 38.

The spelling of 12979011143 in words is "twelve billion, nine hundred seventy-nine million, eleven thousand, one hundred forty-three".

Divisors: 1 7 3089 21623 600241 4201687 1854144449 12979011143