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139607052500 = 225455842821
BaseRepresentation
bin1000001000000100111…
…0101001000011010100
3111100100110022002010002
42002001032221003110
54241403401140000
6144045023350432
713041410236526
oct2020116510324
9440313262102
10139607052500
11542305a5943
1223082152418
131021b34c796
146a85381a16
1539714a28d5
hex20813a90d4

139607052500 has 30 divisors (see below), whose sum is σ = 305292707874. Its totient is φ = 55842820000.

The previous prime is 139607052499. The next prime is 139607052509. The reversal of 139607052500 is 5250706931.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 19106427076 + 120500625424 = 138226^2 + 347132^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139607052509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 27918911 + ... + 27923910.

Almost surely, 2139607052500 is an apocalyptic number.

139607052500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139607052500 is an abundant number, since it is smaller than the sum of its proper divisors (165685655374).

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

139607052500 is an equidigital number, since it uses as much as digits as its factorization.

139607052500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55842845 (or 55842828 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 38.

The spelling of 139607052500 in words is "one hundred thirty-nine billion, six hundred seven million, fifty-two thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 625 1250 2500 55842821 111685642 223371284 279214105 558428210 1116856420 1396070525 2792141050 5584282100 6980352625 13960705250 27921410500 34901763125 69803526250 139607052500