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131001231032 = 2375939649283
BaseRepresentation
bin111101000000001001…
…0000010011010111000
3110112010200221001101122
41322000102002122320
54121242303343112
6140103043004412
712315222043160
oct1720022023270
9415120831348
10131001231032
11506148638a1
1221480069708
13c479453129
1464aa4575a0
15361abd9872
hex1e804826b8

131001231032 has 32 divisors (see below), whose sum is σ = 285474844800. Its totient is φ = 55191800544.

The previous prime is 131001230999. The next prime is 131001231037. The reversal of 131001231032 is 230132100131.

It is a super-2 number, since 2×1310012310322 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131001231032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131001231037) 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, 19821338 + ... + 19827945.

It is an arithmetic number, because the mean of its divisors is an integer number (8921088900).

Almost surely, 2131001231032 is an apocalyptic number.

It is an amenable number.

131001231032 is an abundant number, since it is smaller than the sum of its proper divisors (154473613768).

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

131001231032 is a wasteful number, since it uses less digits than its factorization.

131001231032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39649355 (or 39649351 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 131001231032 its reverse (230132100131), we get a palindrome (361133331163).

The spelling of 131001231032 in words is "one hundred thirty-one billion, one million, two hundred thirty-one thousand, thirty-two".

Divisors: 1 2 4 7 8 14 28 56 59 118 236 413 472 826 1652 3304 39649283 79298566 158597132 277544981 317194264 555089962 1110179924 2220359848 2339307697 4678615394 9357230788 16375153879 18714461576 32750307758 65500615516 131001231032