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131156070 = 2354371869
BaseRepresentation
bin1111101000101…
…00100001100110
3100010210102022020
413310110201212
5232033443240
621003044010
73151544133
oct764244146
9303712266
10131156070
1168041551
1237b10606
1321231a56
14135c158a
15b7ab0d0
hex7d14866

131156070 has 16 divisors (see below), whose sum is σ = 314774640. Its totient is φ = 34974944.

The previous prime is 131156059. The next prime is 131156093. The reversal of 131156070 is 70651131.

It is a self number, because there is not a number n which added to its sum of digits gives 131156070.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2185905 + ... + 2185964.

It is an arithmetic number, because the mean of its divisors is an integer number (19673415).

Almost surely, 2131156070 is an apocalyptic number.

131156070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131156070 is an abundant number, since it is smaller than the sum of its proper divisors (183618570).

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

131156070 is a wasteful number, since it uses less digits than its factorization.

131156070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4371879.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 131156070 is about 11452.3390623925. The cubic root of 131156070 is about 508.0769175903.

The spelling of 131156070 in words is "one hundred thirty-one million, one hundred fifty-six thousand, seventy".

Divisors: 1 2 3 5 6 10 15 30 4371869 8743738 13115607 21859345 26231214 43718690 65578035 131156070