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131202204 = 22372223133
BaseRepresentation
bin1111101000111…
…11110010011100
3100010212202120220
413310133302130
5232041432304
621004041340
73152125500
oct764376234
9303782526
10131202204
1168073181
1237b33250
1321249a53
14135d4300
15b7b9ad9
hex7d1fc9c

131202204 has 36 divisors (see below), whose sum is σ = 356121864. Its totient is φ = 37486176.

The previous prime is 131202187. The next prime is 131202263. The reversal of 131202204 is 402202131.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 110979 + ... + 112154.

It is an arithmetic number, because the mean of its divisors is an integer number (9892274).

Almost surely, 2131202204 is an apocalyptic number.

131202204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131202204 is an abundant number, since it is smaller than the sum of its proper divisors (224919660).

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

131202204 is a wasteful number, since it uses less digits than its factorization.

131202204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223154 (or 223145 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 131202204 is about 11454.3530589903. The cubic root of 131202204 is about 508.1364824349.

Adding to 131202204 its reverse (402202131), we get a palindrome (533404335).

The spelling of 131202204 in words is "one hundred thirty-one million, two hundred two thousand, two hundred four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 223133 446266 669399 892532 1338798 1561931 2677596 3123862 4685793 6247724 9371586 10933517 18743172 21867034 32800551 43734068 65601102 131202204