Search a number
-
+
131477756161080 = 233573128117968217
BaseRepresentation
bin11101111001010000001100…
…111100111010110000111000
3122020112011001212221022220110
4131321100030330322300320
5114213112421034123310
61143344014121024320
736456645235626630
oct3571201474726070
9566464055838813
10131477756161080
113899044880a16a
12128b532a6250a0
1358493b7483514
1424677b35336c0
151030088bead20
hex77940cf3ac38

131477756161080 has 256 divisors, whose sum is σ = 466978173788160. Its totient is φ = 28979138764800.

The previous prime is 131477756161019. The next prime is 131477756161217. The reversal of 131477756161080 is 80161657774131.

It is a self number, because there is not a number n which added to its sum of digits gives 131477756161080.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1666869 + ... + 16301348.

It is an arithmetic number, because the mean of its divisors is an integer number (1824133491360).

Almost surely, 2131477756161080 is an apocalyptic number.

131477756161080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131477756161080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233489086894080).

131477756161080 is an abundant number, since it is smaller than the sum of its proper divisors (335500417627080).

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

131477756161080 is a wasteful number, since it uses less digits than its factorization.

131477756161080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17968550 (or 17968546 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 57.

The spelling of 131477756161080 in words is "one hundred thirty-one trillion, four hundred seventy-seven billion, seven hundred fifty-six million, one hundred sixty-one thousand, eighty".