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15379960919 = 23904973897
BaseRepresentation
bin11100101001011011…
…11001010001010111
31110200212002222002012
432110231321101113
5222444232222134
611022045534435
71053062340131
oct162455712127
943625088065
1015379960919
116582650304
122b9287441b
1315b14924bb
14a5c890051
1560036a6ce
hex394b79457

15379960919 has 8 divisors (see below), whose sum is σ = 16050645600. Its totient is φ = 14709442176.

The previous prime is 15379960909. The next prime is 15379960961. The reversal of 15379960919 is 91906997351.

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 15379960919 - 216 = 15379895383 is a prime.

It is a super-2 number, since 2×153799609192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15379960909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171179 + ... + 245075.

It is an arithmetic number, because the mean of its divisors is an integer number (2006330700).

Almost surely, 215379960919 is an apocalyptic number.

15379960919 is a deficient number, since it is larger than the sum of its proper divisors (670684681).

15379960919 is an equidigital number, since it uses as much as digits as its factorization.

15379960919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82969.

The product of its (nonzero) digits is 4133430, while the sum is 59.

The spelling of 15379960919 in words is "fifteen billion, three hundred seventy-nine million, nine hundred sixty thousand, nine hundred nineteen".

Divisors: 1 23 9049 73897 208127 1699631 668693953 15379960919