Search a number
-
+
131294860 = 225109229263
BaseRepresentation
bin1111101001101…
…10011010001100
3100011001110200121
413310312122030
5232102413420
621010034324
73152662564
oct764663214
9304043617
10131294860
1168126854
1237b789a4
132127cc88
1413619da4
15b7d72aa
hex7d3668c

131294860 has 48 divisors (see below), whose sum is σ = 280526400. Its totient is φ = 51611904.

The previous prime is 131294857. The next prime is 131294903. The reversal of 131294860 is 68492131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499089 + ... + 499351.

It is an arithmetic number, because the mean of its divisors is an integer number (5844300).

Almost surely, 2131294860 is an apocalyptic number.

131294860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131294860 is an abundant number, since it is smaller than the sum of its proper divisors (149231540).

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

131294860 is a wasteful number, since it uses less digits than its factorization.

131294860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 131294860 is about 11458.3969210357. The cubic root of 131294860 is about 508.2560709114.

The spelling of 131294860 in words is "one hundred thirty-one million, two hundred ninety-four thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 109 218 229 263 436 458 526 545 916 1052 1090 1145 1315 2180 2290 2630 4580 5260 24961 28667 49922 57334 60227 99844 114668 120454 124805 143335 240908 249610 286670 301135 499220 573340 602270 1204540 6564743 13129486 26258972 32823715 65647430 131294860