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131550204 = 22310962517
BaseRepresentation
bin1111101011101…
…00101111111100
3100011112102221210
413311310233330
5232134101304
621015324420
73155105202
oct765645774
9304472853
10131550204
1168290685
1238080710
132133c276
1413685072
15b837c89
hex7d74bfc

131550204 has 12 divisors (see below), whose sum is σ = 306950504. Its totient is φ = 43850064.

The previous prime is 131550203. The next prime is 131550217. The reversal of 131550204 is 402055131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131550203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5481247 + ... + 5481270.

Almost surely, 2131550204 is an apocalyptic number.

It is an amenable number.

131550204 is an abundant number, since it is smaller than the sum of its proper divisors (175400300).

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

131550204 is a wasteful number, since it uses less digits than its factorization.

131550204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10962524 (or 10962522 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 131550204 is about 11469.5337307146. The cubic root of 131550204 is about 508.5853452796.

The spelling of 131550204 in words is "one hundred thirty-one million, five hundred fifty thousand, two hundred four".

Divisors: 1 2 3 4 6 12 10962517 21925034 32887551 43850068 65775102 131550204