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131002131024518 = 21338912952553987
BaseRepresentation
bin11101110010010101001111…
…011111000000101010000110
3122011211200101202022222022212
4131302111033133000222012
5114132314331020241033
61142341314223423422
736410406633651125
oct3562251737005206
9564750352288285
10131002131024518
1138817767821406
1212839110754b72
1358135a91b1c80
14244c773649abc
1510229ece54748
hex77254f7c0a86

131002131024518 has 16 divisors (see below), whose sum is σ = 212162834323440. Its totient is φ = 60307091358816.

The previous prime is 131002131024517. The next prime is 131002131024601. The reversal of 131002131024518 is 815420131200131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131002131024517) 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, 6476266880 + ... + 6476287107.

It is an arithmetic number, because the mean of its divisors is an integer number (13260177145215).

Almost surely, 2131002131024518 is an apocalyptic number.

131002131024518 is a deficient number, since it is larger than the sum of its proper divisors (81160703298922).

131002131024518 is a wasteful number, since it uses less digits than its factorization.

131002131024518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12952554391.

The product of its (nonzero) digits is 5760, while the sum is 32.

Adding to 131002131024518 its reverse (815420131200131), we get a palindrome (946422262224649).

The spelling of 131002131024518 in words is "one hundred thirty-one trillion, two billion, one hundred thirty-one million, twenty-four thousand, five hundred eighteen".

Divisors: 1 2 13 26 389 778 5057 10114 12952553987 25905107974 168383201831 336766403662 5038543500943 10077087001886 65501065512259 131002131024518