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131454120 = 23357156493
BaseRepresentation
bin1111101010111…
…01010010101000
3100011100120011010
413311131102220
5232123012440
621013303520
73154225110
oct765352250
9304316133
10131454120
1168225476
1238034ba0
1321307605
141365c040
15b819580
hex7d5d4a8

131454120 has 64 divisors (see below), whose sum is σ = 450702720. Its totient is φ = 30046464.

The previous prime is 131454119. The next prime is 131454133. The reversal of 131454120 is 21454131.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 77407 + ... + 79086.

It is an arithmetic number, because the mean of its divisors is an integer number (7042230).

Almost surely, 2131454120 is an apocalyptic number.

131454120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131454120 is an abundant number, since it is smaller than the sum of its proper divisors (319248600).

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

131454120 is a wasteful number, since it uses less digits than its factorization.

131454120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156514 (or 156510 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 131454120 is about 11465.3443035959. The cubic root of 131454120 is about 508.4614918885.

The spelling of 131454120 in words is "one hundred thirty-one million, four hundred fifty-four thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 420 840 156493 312986 469479 625972 782465 938958 1095451 1251944 1564930 1877916 2190902 2347395 3129860 3286353 3755832 4381804 4694790 5477255 6259720 6572706 8763608 9389580 10954510 13145412 16431765 18779160 21909020 26290824 32863530 43818040 65727060 131454120