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131944257260 = 22527292417447
BaseRepresentation
bin111101011100001111…
…1011001011011101100
3110121120102101202011222
41322320133121123230
54130210212213020
6140340411202512
712350462452604
oct1727037313354
9417512352158
10131944257260
1150a59103412
12216a3a46438
13c59993290a
1465597b3c04
1536738b4b25
hex1eb87d96ec

131944257260 has 24 divisors (see below), whose sum is σ = 277184587680. Its totient is φ = 52758341504.

The previous prime is 131944257227. The next prime is 131944257287. The reversal of 131944257260 is 62752449131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1154144 + ... + 1263303.

It is an arithmetic number, because the mean of its divisors is an integer number (11549357820).

Almost surely, 2131944257260 is an apocalyptic number.

131944257260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131944257260 is an abundant number, since it is smaller than the sum of its proper divisors (145240330420).

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

131944257260 is a wasteful number, since it uses less digits than its factorization.

131944257260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2420185 (or 2420183 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 131944257260 in words is "one hundred thirty-one billion, nine hundred forty-four million, two hundred fifty-seven thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 2729 5458 10916 13645 27290 54580 2417447 4834894 9669788 12087235 24174470 48348940 6597212863 13194425726 26388851452 32986064315 65972128630 131944257260