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131345070 = 2354439883
BaseRepresentation
bin1111101010000…
…10101010101110
3100011011000120020
413311002222232
5232111020240
621011103010
73153262143
oct765025256
9304130506
10131345070
116816054a
1237ba1a66
1321299a9c
14136303ca
15b7e70d0
hex7d42aae

131345070 has 32 divisors (see below), whose sum is σ = 315971712. Its totient is φ = 34942752.

The previous prime is 131345069. The next prime is 131345083. The reversal of 131345070 is 70543131.

It is a self number, because there is not a number n which added to its sum of digits gives 131345070.

It is a congruent 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, 8349 + ... + 18231.

It is an arithmetic number, because the mean of its divisors is an integer number (9874116).

Almost surely, 2131345070 is an apocalyptic number.

131345070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131345070 is an abundant number, since it is smaller than the sum of its proper divisors (184626642).

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

131345070 is a wasteful number, since it uses less digits than its factorization.

131345070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10336.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 131345070 is about 11460.5876812666. The cubic root of 131345070 is about 508.3208520331.

The spelling of 131345070 in words is "one hundred thirty-one million, three hundred forty-five thousand, seventy".

Divisors: 1 2 3 5 6 10 15 30 443 886 1329 2215 2658 4430 6645 9883 13290 19766 29649 49415 59298 98830 148245 296490 4378169 8756338 13134507 21890845 26269014 43781690 65672535 131345070