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137200406400 = 2732528953527
BaseRepresentation
bin111111111000111001…
…0000000111110000000
3111010010201202210022100
41333301302000332000
54221441301001100
6143010132510400
712624645132561
oct1776162007600
9433121683270
10137200406400
1153206064022
122271017b400
13cc26877a35
1468d78b2168
153880067400
hex1ff1c80f80

137200406400 has 288 divisors, whose sum is σ = 495072442800. Its totient is φ = 36175011840.

The previous prime is 137200406383. The next prime is 137200406411. The reversal of 137200406400 is 4604002731.

137200406400 is a `hidden beast` number, since 13 + 7 + 2 + 0 + 0 + 4 + 0 + 640 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2536437 + ... + 2589963.

Almost surely, 2137200406400 is an apocalyptic number.

137200406400 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 137200406400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247536221400).

137200406400 is an abundant number, since it is smaller than the sum of its proper divisors (357872036400).

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

137200406400 is a wasteful number, since it uses less digits than its factorization.

137200406400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53646 (or 53626 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The spelling of 137200406400 in words is "one hundred thirty-seven billion, two hundred million, four hundred six thousand, four hundred".