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15297308873 = 721128380907
BaseRepresentation
bin11100011111100101…
…00110100011001001
31110111002120210210022
432033302212203021
5222312102340443
611005534230225
71051036660100
oct161762464311
943432523708
1015297308873
11653aa28630
122b6b055375
13159a313c72
14a518d7037
155e7e90e68
hex38fca68c9

15297308873 has 12 divisors (see below), whose sum is σ = 19412541072. Its totient is φ = 11919980520.

The previous prime is 15297308869. The next prime is 15297308891. The reversal of 15297308873 is 37880379251.

It is not a de Polignac number, because 15297308873 - 22 = 15297308869 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15297308833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14189915 + ... + 14190992.

It is an arithmetic number, because the mean of its divisors is an integer number (1617711756).

Almost surely, 215297308873 is an apocalyptic number.

It is an amenable number.

15297308873 is a deficient number, since it is larger than the sum of its proper divisors (4115232199).

15297308873 is a wasteful number, since it uses less digits than its factorization.

15297308873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28380932 (or 28380925 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 15297308873 in words is "fifteen billion, two hundred ninety-seven million, three hundred eight thousand, eight hundred seventy-three".

Divisors: 1 7 11 49 77 539 28380907 198666349 312189977 1390664443 2185329839 15297308873