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131340430340 = 22573467270593
BaseRepresentation
bin111101001010001111…
…1111110110000000100
3110120000100012011100222
41322110133332300010
54122441122232330
6140200441123512
712326511144350
oct1722437766004
9416010164328
10131340430340
11507792812a9
1221555789598
13c5017c7192
1464dd512460
15363a88d0e5
hex1e947fec04

131340430340 has 48 divisors (see below), whose sum is σ = 315309117312. Its totient is φ = 45017849856.

The previous prime is 131340430303. The next prime is 131340430433. The reversal of 131340430340 is 43034043131.

It is a happy number.

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, 350084 + ... + 620676.

It is an arithmetic number, because the mean of its divisors is an integer number (6568939944).

Almost surely, 2131340430340 is an apocalyptic number.

131340430340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131340430340 is an abundant number, since it is smaller than the sum of its proper divisors (183968686972).

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

131340430340 is a wasteful number, since it uses less digits than its factorization.

131340430340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274076 (or 274074 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 131340430340 its reverse (43034043131), we get a palindrome (174374473471).

The spelling of 131340430340 in words is "one hundred thirty-one billion, three hundred forty million, four hundred thirty thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 3467 6934 13868 17335 24269 34670 48538 69340 97076 121345 242690 270593 485380 541186 1082372 1352965 1894151 2705930 3788302 5411860 7576604 9470755 18941510 37883020 938145931 1876291862 3752583724 4690729655 6567021517 9381459310 13134043034 18762918620 26268086068 32835107585 65670215170 131340430340