Search a number
-
+
131938755372 = 22323664965427
BaseRepresentation
bin111101011100000101…
…0011010001100101100
3110121120001001020000100
41322320022122030230
54130202310132442
6140340053231100
712350364626244
oct1727012321454
9417501036010
10131938755372
1150a55a957a6
12216a2032490
13c598757568
146558b80b24
15367317984c
hex1eb829a32c

131938755372 has 18 divisors (see below), whose sum is σ = 333511853948. Its totient is φ = 43979585112.

The previous prime is 131938755353. The next prime is 131938755383. The reversal of 131938755372 is 273557839131.

It is a happy number.

131938755372 is a `hidden beast` number, since 1 + 3 + 1 + 9 + 3 + 87 + 553 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1319387553722 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1832482678 + ... + 1832482749.

Almost surely, 2131938755372 is an apocalyptic number.

131938755372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131938755372 is an abundant number, since it is smaller than the sum of its proper divisors (201573098576).

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

131938755372 is a wasteful number, since it uses less digits than its factorization.

131938755372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664965437 (or 3664965432 counting only the distinct ones).

The product of its digits is 4762800, while the sum is 54.

The spelling of 131938755372 in words is "one hundred thirty-one billion, nine hundred thirty-eight million, seven hundred fifty-five thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 3664965427 7329930854 10994896281 14659861708 21989792562 32984688843 43979585124 65969377686 131938755372