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131437900 = 225211119489
BaseRepresentation
bin1111101010110…
…01010101001100
3100011022201220101
413311121111030
5232122003100
621013100444
73154126606
oct765312514
9304281811
10131437900
1168214270
1238027724
1321300109
1413656176
15b81486a
hex7d5954c

131437900 has 36 divisors (see below), whose sum is σ = 311151960. Its totient is φ = 47795200.

The previous prime is 131437883. The next prime is 131437921. The reversal of 131437900 is 9734131.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58645 + ... + 60844.

It is an arithmetic number, because the mean of its divisors is an integer number (8643110).

Almost surely, 2131437900 is an apocalyptic number.

131437900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131437900 is an abundant number, since it is smaller than the sum of its proper divisors (179714060).

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

131437900 is a wasteful number, since it uses less digits than its factorization.

131437900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119514 (or 119507 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 131437900 is about 11464.6369327598. The cubic root of 131437900 is about 508.4405781669.

The spelling of 131437900 in words is "one hundred thirty-one million, four hundred thirty-seven thousand, nine hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 119489 238978 477956 597445 1194890 1314379 2389780 2628758 2987225 5257516 5974450 6571895 11948900 13143790 26287580 32859475 65718950 131437900