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131799833780 = 22527412404229
BaseRepresentation
bin111101010111111100…
…0011101110010110100
3110121012100122021102012
41322233320131302310
54124411224140110
6140314211503352
712344060050106
oct1725770356264
9417170567365
10131799833780
115099462a96a
12216635b7b58
13c575a37034
14654453b576
153665d87905
hex1eafe1dcb4

131799833780 has 24 divisors (see below), whose sum is σ = 276880743720. Its totient is φ = 52700677760.

The previous prime is 131799833773. The next prime is 131799833819. The reversal of 131799833780 is 87338997131.

It can be written as a sum of positive squares in 4 ways, for example, as 16217513104 + 115582320676 = 127348^2 + 339974^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1147295 + ... + 1256934.

It is an arithmetic number, because the mean of its divisors is an integer number (11536697655).

Almost surely, 2131799833780 is an apocalyptic number.

131799833780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131799833780 is an abundant number, since it is smaller than the sum of its proper divisors (145080909940).

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

131799833780 is a wasteful number, since it uses less digits than its factorization.

131799833780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406979 (or 2406977 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 59.

The spelling of 131799833780 in words is "one hundred thirty-one billion, seven hundred ninety-nine million, eight hundred thirty-three thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 2741 5482 10964 13705 27410 54820 2404229 4808458 9616916 12021145 24042290 48084580 6589991689 13179983378 26359966756 32949958445 65899916890 131799833780