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131343342 = 23133154319
BaseRepresentation
bin1111101010000…
…10001111101110
3100011010221012020
413311002033232
5232110441332
621011051010
73153254124
oct765021756
9304127166
10131343342
116815a219
1237ba0a66
1321299070
141362d914
15b7e682c
hex7d423ee

131343342 has 32 divisors (see below), whose sum is σ = 292024320. Its totient is φ = 39108960.

The previous prime is 131343341. The next prime is 131343347. The reversal of 131343342 is 243343131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131343341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24742 + ... + 29577.

It is an arithmetic number, because the mean of its divisors is an integer number (9125760).

Almost surely, 2131343342 is an apocalyptic number.

131343342 is an abundant number, since it is smaller than the sum of its proper divisors (160680978).

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

131343342 is a wasteful number, since it uses less digits than its factorization.

131343342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54368.

The product of its digits is 2592, while the sum is 24.

The square root of 131343342 is about 11460.5122922145. The cubic root of 131343342 is about 508.3186228357.

Adding to 131343342 its reverse (243343131), we get a palindrome (374686473).

The spelling of 131343342 in words is "one hundred thirty-one million, three hundred forty-three thousand, three hundred forty-two".

Divisors: 1 2 3 6 13 26 31 39 62 78 93 186 403 806 1209 2418 54319 108638 162957 325914 706147 1412294 1683889 2118441 3367778 4236882 5051667 10103334 21890557 43781114 65671671 131343342