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15397038913 = 71709305867
BaseRepresentation
bin11100101011011110…
…00010101101000001
31110202001020121200111
432111233002231001
5223013120221123
611023455551321
71053360446164
oct162557025501
943661217614
1015397038913
116591255253
122b9852b541
1315b4b91919
14a60c57adb
15601ae090d
hex395bc2b41

15397038913 has 8 divisors (see below), whose sum is σ = 15635972160. Its totient is φ = 15158718960.

The previous prime is 15397038901. The next prime is 15397038959. The reversal of 15397038913 is 31983079351.

It is a happy number.

15397038913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15397038913 - 213 = 15397030721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15397038313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102595 + ... + 203272.

It is an arithmetic number, because the mean of its divisors is an integer number (1954496520).

Almost surely, 215397038913 is an apocalyptic number.

It is an amenable number.

15397038913 is a deficient number, since it is larger than the sum of its proper divisors (238933247).

15397038913 is an equidigital number, since it uses as much as digits as its factorization.

15397038913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306647.

The product of its (nonzero) digits is 612360, while the sum is 49.

The spelling of 15397038913 in words is "fifteen billion, three hundred ninety-seven million, thirty-eight thousand, nine hundred thirteen".

Divisors: 1 71 709 50339 305867 21716557 216859703 15397038913