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15390143104 = 27741418939
BaseRepresentation
bin11100101010101001…
…01111001010000000
31110201120021021102011
432111110233022000
5223004334034404
611023052102304
71053245025610
oct162524571200
943646237364
1015390143104
116588375336
122b96164994
1315b3618c6b
14a5dd80a40
156011cc604
hex39552f280

15390143104 has 64 divisors (see below), whose sum is σ = 35894779200. Its totient is φ = 6434887680.

The previous prime is 15390143101. The next prime is 15390143123. The reversal of 15390143104 is 40134109351.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (15390143101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172734 + ... + 246205.

It is an arithmetic number, because the mean of its divisors is an integer number (560855925).

Almost surely, 215390143104 is an apocalyptic number.

15390143104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

15390143104 is an abundant number, since it is smaller than the sum of its proper divisors (20504636096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15390143104 is an equidigital number, since it uses as much as digits as its factorization.

15390143104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419001 (or 418989 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 15390143104 in words is "fifteen billion, three hundred ninety million, one hundred forty-three thousand, one hundred four".

Divisors: 1 2 4 7 8 14 16 28 32 41 56 64 82 112 128 164 224 287 328 448 574 656 896 1148 1312 2296 2624 4592 5248 9184 18368 36736 418939 837878 1675756 2932573 3351512 5865146 6703024 11730292 13406048 17176499 23460584 26812096 34352998 46921168 53624192 68705996 93842336 120235493 137411992 187684672 240470986 274823984 375369344 480941972 549647968 961883944 1099295936 1923767888 2198591872 3847535776 7695071552 15390143104