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131232342 = 2323950959
BaseRepresentation
bin1111101001001…
…11001001010110
3100010221021221010
413310213021112
5232043413332
621004433050
73152312403
oct764471126
9303837833
10131232342
116809388a
1237b48786
132125a697
14136012aa
15b7c39cc
hex7d27256

131232342 has 16 divisors (see below), whose sum is σ = 273876480. Its totient is φ = 41842152.

The previous prime is 131232329. The next prime is 131232347. The reversal of 131232342 is 243232131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131232347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475342 + ... + 475617.

It is an arithmetic number, because the mean of its divisors is an integer number (17117280).

Almost surely, 2131232342 is an apocalyptic number.

131232342 is an abundant number, since it is smaller than the sum of its proper divisors (142644138).

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

131232342 is a wasteful number, since it uses less digits than its factorization.

131232342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950987.

The product of its digits is 864, while the sum is 21.

The square root of 131232342 is about 11455.6685531662. The cubic root of 131232342 is about 508.1753868750.

Adding to 131232342 its reverse (243232131), we get a palindrome (374464473).

The spelling of 131232342 in words is "one hundred thirty-one million, two hundred thirty-two thousand, three hundred forty-two".

Divisors: 1 2 3 6 23 46 69 138 950959 1901918 2852877 5705754 21872057 43744114 65616171 131232342