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131798688512079 = 3103426532972531
BaseRepresentation
bin11101111101111011000110…
…000000101011100001001111
3122021122211110012202222000210
4131331323012000223201033
5114233342203224341304
61144151252011053503
736522066236614551
oct3575730600534117
9567584405688023
10131798688512079
1138aa45677535a6
1212947576141293
135870741b9c524
14247913a6d94d1
1510385bdde2c89
hex77dec602b84f

131798688512079 has 8 divisors (see below), whose sum is σ = 177437716573312. Its totient is φ = 87012726396120.

The previous prime is 131798688512063. The next prime is 131798688512089. The reversal of 131798688512079 is 970215886897131.

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

It is not a de Polignac number, because 131798688512079 - 24 = 131798688512063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131798688512079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131798688512089) 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, 213266485957 + ... + 213266486574.

It is an arithmetic number, because the mean of its divisors is an integer number (22179714571664).

Almost surely, 2131798688512079 is an apocalyptic number.

131798688512079 is a deficient number, since it is larger than the sum of its proper divisors (45639028061233).

131798688512079 is a wasteful number, since it uses less digits than its factorization.

131798688512079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426532972637.

The product of its (nonzero) digits is 365783040, while the sum is 75.

The spelling of 131798688512079 in words is "one hundred thirty-one trillion, seven hundred ninety-eight billion, six hundred eighty-eight million, five hundred twelve thousand, seventy-nine".

Divisors: 1 3 103 309 426532972531 1279598917593 43932896170693 131798688512079