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15139200797 = 72162742971
BaseRepresentation
bin11100001100101110…
…11101111100011101
31110002002002002021122
432012113131330131
5222001113411142
610542125340325
71044110040440
oct160627357435
943062062248
1015139200797
1164697586a6
122b261076a5
1315736366a6
14a388db657
155d915e1d2
hex3865ddf1d

15139200797 has 4 divisors (see below), whose sum is σ = 17301943776. Its totient is φ = 12976457820.

The previous prime is 15139200773. The next prime is 15139200823. The reversal of 15139200797 is 79700293151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15139200797 - 28 = 15139200541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15139200697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081371479 + ... + 1081371492.

It is an arithmetic number, because the mean of its divisors is an integer number (4325485944).

Almost surely, 215139200797 is an apocalyptic number.

It is an amenable number.

15139200797 is a deficient number, since it is larger than the sum of its proper divisors (2162742979).

15139200797 is an equidigital number, since it uses as much as digits as its factorization.

15139200797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162742978.

The product of its (nonzero) digits is 119070, while the sum is 44.

The spelling of 15139200797 in words is "fifteen billion, one hundred thirty-nine million, two hundred thousand, seven hundred ninety-seven".

Divisors: 1 7 2162742971 15139200797