Search a number
-
+
131243025160 = 235131913283707
BaseRepresentation
bin111101000111010110…
…0011010001100001000
3110112202112220110120201
41322032230122030020
54122241203301120
6140143041301544
712324216210262
oct1721654321410
9415675813521
10131243025160
11507292a2355
12215290348b4
13c4b7581790
1464d05d8b32
15363204c40a
hex1e8eb1a308

131243025160 has 64 divisors (see below), whose sum is σ = 334749441600. Its totient is φ = 45908487936.

The previous prime is 131243025139. The next prime is 131243025187. The reversal of 131243025160 is 61520342131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6631974 + ... + 6651733.

It is an arithmetic number, because the mean of its divisors is an integer number (5230460025).

Almost surely, 2131243025160 is an apocalyptic number.

131243025160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131243025160 is an abundant number, since it is smaller than the sum of its proper divisors (203506416440).

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

131243025160 is a wasteful number, since it uses less digits than its factorization.

131243025160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13283750 (or 13283746 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 131243025160 its reverse (61520342131), we get a palindrome (192763367291).

The spelling of 131243025160 in words is "one hundred thirty-one billion, two hundred forty-three million, twenty-five thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 13 19 20 26 38 40 52 65 76 95 104 130 152 190 247 260 380 494 520 760 988 1235 1976 2470 4940 9880 13283707 26567414 53134828 66418535 106269656 132837070 172688191 252390433 265674140 345376382 504780866 531348280 690752764 863440955 1009561732 1261952165 1381505528 1726881910 2019123464 2523904330 3281075629 3453763820 5047808660 6562151258 6907527640 10095617320 13124302516 16405378145 26248605032 32810756290 65621512580 131243025160