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131400122 = 2783113081
BaseRepresentation
bin1111101010100…
…00000110111010
3100011020211002012
413311100012322
5232114300442
621012205522
73153611510
oct765200672
9304224065
10131400122
1168198947
12380098a2
13212b8b69
14136464b0
15b808582
hex7d501ba

131400122 has 16 divisors (see below), whose sum is σ = 227973312. Its totient is φ = 55635360.

The previous prime is 131400119. The next prime is 131400167. The reversal of 131400122 is 221004131.

It is a super-2 number, since 2×1314001222 = 34531984123229768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 131400097 and 131400106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55379 + ... + 57702.

It is an arithmetic number, because the mean of its divisors is an integer number (14248332).

Almost surely, 2131400122 is an apocalyptic number.

131400122 is a deficient number, since it is larger than the sum of its proper divisors (96573190).

131400122 is a wasteful number, since it uses less digits than its factorization.

131400122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113173.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 131400122 is about 11462.9892262010. The cubic root of 131400122 is about 508.3918613490.

Adding to 131400122 its reverse (221004131), we get a palindrome (352404253).

The spelling of 131400122 in words is "one hundred thirty-one million, four hundred thousand, one hundred twenty-two".

Divisors: 1 2 7 14 83 166 581 1162 113081 226162 791567 1583134 9385723 18771446 65700061 131400122