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137131444800 = 2634527712129
BaseRepresentation
bin111111110110110101…
…0111100101001000000
3111002221221000011210000
41333231222330221000
54221321122213200
6142555230440000
712623150022420
oct1775552745100
9432857004700
10137131444800
1153180142169
12226b1063000
13cc154b0a5c
1468cc680480
153878e94300
hex1fedabca40

137131444800 has 840 divisors, whose sum is σ = 584457413760. Its totient is φ = 30888345600.

The previous prime is 137131444757. The next prime is 137131444811. The reversal of 137131444800 is 8444131731.

137131444800 is a `hidden beast` number, since 1 + 3 + 7 + 131 + 44 + 480 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (840).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 64410136 + ... + 64412264.

Almost surely, 2137131444800 is an apocalyptic number.

137131444800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137131444800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292228706880).

137131444800 is an abundant number, since it is smaller than the sum of its proper divisors (447325968960).

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

137131444800 is a wasteful number, since it uses less digits than its factorization.

137131444800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241 (or 2217 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 137131444800 in words is "one hundred thirty-seven billion, one hundred thirty-one million, four hundred forty-four thousand, eight hundred".