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131542361052 = 22313417817013
BaseRepresentation
bin111101010000010001…
…0010010001111011100
3110120112102011022020020
41322200202102033130
54123344321023202
6140232453152140
712334512422544
oct1724042221734
9416472138206
10131542361052
1150872262893
12215b132b650
13c5345a91cb
14651c278324
15364d4795bc
hex1ea08923dc

131542361052 has 24 divisors (see below), whose sum is σ = 306955427856. Its totient is φ = 43844131968.

The previous prime is 131542360993. The next prime is 131542361057. The reversal of 131542361052 is 250163245131.

It is a super-2 number, since 2×1315423610522 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131542361057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247503 + ... + 569510.

It is an arithmetic number, because the mean of its divisors is an integer number (12789809494).

Almost surely, 2131542361052 is an apocalyptic number.

131542361052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131542361052 is an abundant number, since it is smaller than the sum of its proper divisors (175413066804).

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

131542361052 is a wasteful number, since it uses less digits than its factorization.

131542361052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830437 (or 830435 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 131542361052 in words is "one hundred thirty-one billion, five hundred forty-two million, three hundred sixty-one thousand, fifty-two".

Divisors: 1 2 3 4 6 12 13417 26834 40251 53668 80502 161004 817013 1634026 2451039 3268052 4902078 9804156 10961863421 21923726842 32885590263 43847453684 65771180526 131542361052