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79120800001 = 312552283871
BaseRepresentation
bin100100110101111110…
…1111001100100000001
321120020001202002100001
41021223331321210001
52244014411100001
6100203025200001
75500454463205
oct1115375714401
9246201662301
1079120800001
11306116a1111
1213401490001
1375cbc41a29
143b880b4b05
1520d1200001
hex126bf79901

79120800001 has 4 divisors (see below), whose sum is σ = 81673083904. Its totient is φ = 76568516100.

The previous prime is 79120799981. The next prime is 79120800013. The reversal of 79120800001 is 10000802197.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79120800001 - 217 = 79120668929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79120800041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1276141905 + ... + 1276141966.

It is an arithmetic number, because the mean of its divisors is an integer number (20418270976).

Almost surely, 279120800001 is an apocalyptic number.

It is an amenable number.

79120800001 is a deficient number, since it is larger than the sum of its proper divisors (2552283903).

79120800001 is a wasteful number, since it uses less digits than its factorization.

79120800001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552283902.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 79120800001 in words is "seventy-nine billion, one hundred twenty million, eight hundred thousand, one".

Divisors: 1 31 2552283871 79120800001