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131356670 = 2522735779
BaseRepresentation
bin1111101010001…
…01011111111110
3100011011121110212
413311011133332
5232111403140
621011232422
73153341024
oct765053776
9304147425
10131356670
1168169235
1237ba8712
13212a2153
1413634714
15b7ea765
hex7d457fe

131356670 has 16 divisors (see below), whose sum is σ = 236586960. Its totient is φ = 52510464.

The previous prime is 131356639. The next prime is 131356727. The reversal of 131356670 is 76653131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19841 + ... + 25619.

It is an arithmetic number, because the mean of its divisors is an integer number (14786685).

Almost surely, 2131356670 is an apocalyptic number.

131356670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131356670 is a deficient number, since it is larger than the sum of its proper divisors (105230290).

131356670 is a wasteful number, since it uses less digits than its factorization.

131356670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8059.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 131356670 is about 11461.0937523432. The cubic root of 131356670 is about 508.3358160469.

The spelling of 131356670 in words is "one hundred thirty-one million, three hundred fifty-six thousand, six hundred seventy".

Divisors: 1 2 5 10 2273 4546 5779 11365 11558 22730 28895 57790 13135667 26271334 65678335 131356670