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131545040545131 = 31091042938573057
BaseRepresentation
bin11101111010001110110111…
…011010011110010101101011
3122020202120202001101012000120
4131322032313122132111223
5114220213220334421011
61143434542442534323
736464546506513623
oct3572166732362553
9566676661335016
10131545040545131
1138a06a36019834
1212906387b073a3
13585284b107615
14246ab5760d883
151031bc5bdea06
hex77a3b769e56b

131545040545131 has 16 divisors (see below), whose sum is σ = 177019477773600. Its totient is φ = 86883802841088.

The previous prime is 131545040545129. The next prime is 131545040545157.

131545040545131 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 131545040545131 - 21 = 131545040545129 is a prime.

It is a super-2 number, since 2×1315450405451312 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131545040545031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15876246 + ... + 22696811.

It is an arithmetic number, because the mean of its divisors is an integer number (11063717360850).

Almost surely, 2131545040545131 is an apocalyptic number.

131545040545131 is a deficient number, since it is larger than the sum of its proper divisors (45474437228469).

131545040545131 is a wasteful number, since it uses less digits than its factorization.

131545040545131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38583598.

The product of its (nonzero) digits is 360000, while the sum is 42.

The spelling of 131545040545131 in words is "one hundred thirty-one trillion, five hundred forty-five billion, forty million, five hundred forty-five thousand, one hundred thirty-one".

Divisors: 1 3 109 327 10429 31287 1136761 3410283 38573057 115719171 4204463213 12613389639 402278411453 1206835234359 43848346848377 131545040545131