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131537043570 = 23530689142871
BaseRepresentation
bin111101010000000111…
…0000000000001110010
3110120112001011011000110
41322200032000001302
54123341440343240
6140232143202150
712334416264642
oct1724016000162
9416461134013
10131537043570
115086a260779
12215ab5a6356
13c533466a7a
14651b692522
15364cc78c80
hex1ea0380072

131537043570 has 32 divisors (see below), whose sum is σ = 315701400960. Its totient is φ = 35075156480.

The previous prime is 131537043569. The next prime is 131537043587. The reversal of 131537043570 is 75340735131.

It is a happy number.

It is a super-2 number, since 2×1315370435702 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 849235 + ... + 992105.

It is an arithmetic number, because the mean of its divisors is an integer number (9865668780).

Almost surely, 2131537043570 is an apocalyptic number.

131537043570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131537043570 is an abundant number, since it is smaller than the sum of its proper divisors (184164357390).

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

131537043570 is a wasteful number, since it uses less digits than its factorization.

131537043570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173570.

The product of its (nonzero) digits is 132300, while the sum is 39.

The spelling of 131537043570 in words is "one hundred thirty-one billion, five hundred thirty-seven million, forty-three thousand, five hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 30689 61378 92067 142871 153445 184134 285742 306890 428613 460335 714355 857226 920670 1428710 2143065 4286130 4384568119 8769136238 13153704357 21922840595 26307408714 43845681190 65768521785 131537043570