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131490811486902 = 2373130733606831
BaseRepresentation
bin11101111001011100010111…
…000111000010001010110110
3122020120101202201211121010110
4131321130113013002022312
5114213321140220040102
61143354013410003450
736460616613233220
oct3571342707021266
9566511681747113
10131490811486902
1138995a3814273a
12128b7972876586
13584a6b815679a
142468291381410
15103059ee2a86c
hex7797171c22b6

131490811486902 has 16 divisors (see below), whose sum is σ = 300550426255872. Its totient is φ = 37568803281960.

The previous prime is 131490811486891. The next prime is 131490811486927. The reversal of 131490811486902 is 209684118094131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1565366803374 + ... + 1565366803457.

It is an arithmetic number, because the mean of its divisors is an integer number (18784401640992).

Almost surely, 2131490811486902 is an apocalyptic number.

131490811486902 is an abundant number, since it is smaller than the sum of its proper divisors (169059614768970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131490811486902 is a wasteful number, since it uses less digits than its factorization.

131490811486902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3130733606843.

The product of its (nonzero) digits is 2985984, while the sum is 57.

The spelling of 131490811486902 in words is "one hundred thirty-one trillion, four hundred ninety billion, eight hundred eleven million, four hundred eighty-six thousand, nine hundred two".

Divisors: 1 2 3 6 7 14 21 42 3130733606831 6261467213662 9392200820493 18784401640986 21915135247817 43830270495634 65745405743451 131490811486902