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79434186407 = 196263667531
BaseRepresentation
bin100100111111010100…
…1010111111010100111
321121000220102202122222
41021332221113322213
52300140122431112
6100254102142555
75511311305202
oct1117651277247
9247026382588
1079434186407
1130762588a44
121348a421a5b
13764bb48884
143bb7970939
1520ed9a5372
hex127ea57ea7

79434186407 has 8 divisors (see below), whose sum is σ = 83628408960. Its totient is φ = 75241311480.

The previous prime is 79434186389. The next prime is 79434186427. The reversal of 79434186407 is 70468143497.

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 79434186407 - 28 = 79434186151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79434186427) by changing a digit.

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, 214769 + ... + 452762.

It is an arithmetic number, because the mean of its divisors is an integer number (10453551120).

Almost surely, 279434186407 is an apocalyptic number.

79434186407 is a deficient number, since it is larger than the sum of its proper divisors (4194222553).

79434186407 is a wasteful number, since it uses less digits than its factorization.

79434186407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673813.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 79434186407 in words is "seventy-nine billion, four hundred thirty-four million, one hundred eighty-six thousand, four hundred seven".

Divisors: 1 19 6263 118997 667531 12683089 4180746653 79434186407