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131400332 = 2274692869
BaseRepresentation
bin1111101010100…
…00001010001100
3100011020211100222
413311100022030
5232114302312
621012210512
73153612230
oct765201214
9304224328
10131400332
1168199018
1238009a38
13212b8c9b
14136465c0
15b808672
hex7d5028c

131400332 has 12 divisors (see below), whose sum is σ = 262800720. Its totient is φ = 56314416.

The previous prime is 131400329. The next prime is 131400341. The reversal of 131400332 is 233004131.

It is a happy number.

131400332 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 131400332.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2346407 + ... + 2346462.

It is an arithmetic number, because the mean of its divisors is an integer number (21900060).

Almost surely, 2131400332 is an apocalyptic number.

It is an amenable number.

131400332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131400332 is a wasteful number, since it uses less digits than its factorization.

131400332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4692880 (or 4692878 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 131400332 is about 11462.9983861117. The cubic root of 131400332 is about 508.3921321814.

Adding to 131400332 its reverse (233004131), we get a palindrome (364404463).

The spelling of 131400332 in words is "one hundred thirty-one million, four hundred thousand, three hundred thirty-two".

Divisors: 1 2 4 7 14 28 4692869 9385738 18771476 32850083 65700166 131400332