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13245954666 = 23710115719889
BaseRepresentation
bin11000101011000010…
…10011101001101010
31021012010121012211120
430111201103221222
5204111431022131
610030214440110
7646150520430
oct142541235152
937163535746
1013245954666
115687aa587a
122698063036
131331328cc9
148d92b0d50
15527d37496
hex315853a6a

13245954666 has 64 divisors (see below), whose sum is σ = 30772535040. Its totient is φ = 3723033600.

The previous prime is 13245954647. The next prime is 13245954707. The reversal of 13245954666 is 66645954231.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 656050 + ... + 675938.

It is an arithmetic number, because the mean of its divisors is an integer number (480820860).

Almost surely, 213245954666 is an apocalyptic number.

13245954666 is an abundant number, since it is smaller than the sum of its proper divisors (17526580374).

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

13245954666 is a wasteful number, since it uses less digits than its factorization.

13245954666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20159.

The product of its digits is 4665600, while the sum is 51.

The spelling of 13245954666 in words is "thirteen billion, two hundred forty-five million, nine hundred fifty-four thousand, six hundred sixty-six".

Divisors: 1 2 3 6 7 14 21 42 101 157 202 303 314 471 606 707 942 1099 1414 2121 2198 3297 4242 6594 15857 19889 31714 39778 47571 59667 95142 110999 119334 139223 221998 278446 332997 417669 665994 835338 2008789 3122573 4017578 6026367 6245146 9367719 12052734 14061523 18735438 21858011 28123046 42184569 43716022 65574033 84369138 131148066 315379873 630759746 946139619 1892279238 2207659111 4415318222 6622977333 13245954666