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79900288161 = 3165531608979
BaseRepresentation
bin100101001101001101…
…1011010010010100001
321122020101111012001220
41022122123122102201
52302113433210121
6100412232245253
75526001146351
oct1123233322241
9248211435056
1079900288161
11309816a2101
121359a540829
1376c4592525
143c1d820b61
1521298746c6
hex129a6da4a1

79900288161 has 8 divisors (see below), whose sum is σ = 106540219680. Its totient is φ = 53263607712.

The previous prime is 79900288123. The next prime is 79900288177. The reversal of 79900288161 is 16188200997.

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

It is not a de Polignac number, because 79900288161 - 213 = 79900279969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79900283161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754831 + ... + 854148.

It is an arithmetic number, because the mean of its divisors is an integer number (13317527460).

Almost surely, 279900288161 is an apocalyptic number.

It is an amenable number.

79900288161 is a deficient number, since it is larger than the sum of its proper divisors (26639931519).

79900288161 is a wasteful number, since it uses less digits than its factorization.

79900288161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625535.

The product of its (nonzero) digits is 435456, while the sum is 51.

The spelling of 79900288161 in words is "seventy-nine billion, nine hundred million, two hundred eighty-eight thousand, one hundred sixty-one".

Divisors: 1 3 16553 49659 1608979 4826937 26633429387 79900288161