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15013013115209 = 19291071671524811
BaseRepresentation
bin1101101001110111110101…
…0100000101000101001001
31222011020012200211010101112
43122131331110011011021
53431433122324141314
651532514421500105
73106440313640024
oct332357524050511
958136180733345
1015013013115209
114868a8a57364a
121825757871635
1384b94b233c55
1439c8c2c961bb
151b07c9d0743e
hexda77d505149

15013013115209 has 32 divisors (see below), whose sum is σ = 16599713356800. Its totient is φ = 13522600607040.

The previous prime is 15013013115187. The next prime is 15013013115229. The reversal of 15013013115209 is 90251131031051.

15013013115209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15013013115209 is a prime.

It is a super-2 number, since 2×150130131152092 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15013013115229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9083414 + ... + 10608224.

It is an arithmetic number, because the mean of its divisors is an integer number (518741042400).

Almost surely, 215013013115209 is an apocalyptic number.

15013013115209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

15013013115209 is a deficient number, since it is larger than the sum of its proper divisors (1586700241591).

15013013115209 is a wasteful number, since it uses less digits than its factorization.

15013013115209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525133.

The product of its (nonzero) digits is 4050, while the sum is 32.

The spelling of 15013013115209 in words is "fifteen trillion, thirteen billion, thirteen million, one hundred fifteen thousand, two hundred nine".

Divisors: 1 19 29 107 167 551 2033 3103 3173 4843 17869 58957 92017 339511 518201 1524811 9845819 28971409 44219519 163154777 254643437 840170861 3099940763 4731488533 4838225303 7384659673 27246847759 89898282127 140308533787 517690107421 790158585011 15013013115209