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131343160 = 23513252583
BaseRepresentation
bin1111101010000…
…10001100111000
3100011010220221111
413311002030320
5232110440120
621011050104
73153253444
oct765021470
9304126844
10131343160
116815a073
1237ba0934
1321298c60
141362d824
15b7e675a
hex7d42338

131343160 has 32 divisors (see below), whose sum is σ = 318255840. Its totient is φ = 48495744.

The previous prime is 131343137. The next prime is 131343161. The reversal of 131343160 is 61343131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131343161) by changing a digit.

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, 125772 + ... + 126811.

It is an arithmetic number, because the mean of its divisors is an integer number (9945495).

Almost surely, 2131343160 is an apocalyptic number.

131343160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131343160 is an abundant number, since it is smaller than the sum of its proper divisors (186912680).

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

131343160 is a wasteful number, since it uses less digits than its factorization.

131343160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252607 (or 252603 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 131343160 is about 11460.5043519035. The cubic root of 131343160 is about 508.3183880464.

Adding to 131343160 its reverse (61343131), we get a palindrome (192686291).

The spelling of 131343160 in words is "one hundred thirty-one million, three hundred forty-three thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 252583 505166 1010332 1262915 2020664 2525830 3283579 5051660 6567158 10103320 13134316 16417895 26268632 32835790 65671580 131343160