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139908730500 = 22325371134771
BaseRepresentation
bin1000001001001100110…
…1011100111010000100
3111101010110221220112100
42002103031130322010
54243013113334000
6144135001352100
713052032405320
oct2022315347204
9441113856470
10139908730500
1154375916000
1223147198630
13102689b7286
146ab3470980
15398cbe3a00
hex209335ce84

139908730500 has 1152 divisors, whose sum is σ = 574606835712. Its totient is φ = 28052640000.

The previous prime is 139908730477. The next prime is 139908730519. The reversal of 139908730500 is 5037809931.

It is a happy number.

139908730500 is a `hidden beast` number, since 1 + 39 + 9 + 0 + 87 + 30 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 1970545465 + ... + 1970545535.

It is an arithmetic number, because the mean of its divisors is an integer number (498790656).

Almost surely, 2139908730500 is an apocalyptic number.

139908730500 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 139908730500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287303417856).

139908730500 is an abundant number, since it is smaller than the sum of its proper divisors (434698105212).

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

139908730500 is a wasteful number, since it uses less digits than its factorization.

139908730500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 139908730500 in words is "one hundred thirty-nine billion, nine hundred eight million, seven hundred thirty thousand, five hundred".