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131963819020 = 22511631950611
BaseRepresentation
bin111101011100110101…
…0000001010000001100
3110121121210012120212121
41322321222001100030
54130230214202040
6140342350342324
712351120645145
oct1727152012014
9417553176777
10131963819020
1150a69154460
12216aa4ba9a4
13c5a09c1717
14655c226acc
15367547ac4a
hex1eb9a8140c

131963819020 has 48 divisors (see below), whose sum is σ = 302796539136. Its totient is φ = 47910744000.

The previous prime is 131963818951. The next prime is 131963819093. The reversal of 131963819020 is 20918369131.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336486 + ... + 614125.

It is an arithmetic number, because the mean of its divisors is an integer number (6308261232).

Almost surely, 2131963819020 is an apocalyptic number.

131963819020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131963819020 is an abundant number, since it is smaller than the sum of its proper divisors (170832720116).

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

131963819020 is a wasteful number, since it uses less digits than its factorization.

131963819020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951262 (or 951260 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 131963819020 in words is "one hundred thirty-one billion, nine hundred sixty-three million, eight hundred nineteen thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 631 1262 2524 3155 6310 6941 12620 13882 27764 34705 69410 138820 950611 1901222 3802444 4753055 9506110 10456721 19012220 20913442 41826884 52283605 104567210 209134420 599835541 1199671082 2399342164 2999177705 5998355410 6598190951 11996710820 13196381902 26392763804 32990954755 65981909510 131963819020