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138313568120 = 235721321921977
BaseRepresentation
bin1000000011010000100…
…0011000111101111000
3111020000022101021010012
42000310020120331320
54231231233134440
6143312415441052
712664352634200
oct2006410307570
9436008337105
10138313568120
1153727448992
1222980b26188
1310073386400
1469a1679400
1538e7b4ce65
hex2034218f78

138313568120 has 288 divisors, whose sum is σ = 412654532400. Its totient is φ = 41468184576.

The previous prime is 138313568087. The next prime is 138313568143. The reversal of 138313568120 is 21865313831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6282572 + ... + 6304548.

Almost surely, 2138313568120 is an apocalyptic number.

138313568120 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 138313568120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206327266200).

138313568120 is an abundant number, since it is smaller than the sum of its proper divisors (274340964280).

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

138313568120 is a wasteful number, since it uses less digits than its factorization.

138313568120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22047 (or 22023 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 138313568120 in words is "one hundred thirty-eight billion, three hundred thirteen million, five hundred sixty-eight thousand, one hundred twenty".