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13281864268 = 225715815177
BaseRepresentation
bin11000101111010100…
…10010101001001100
31021021122011121112211
430113222102221030
5204200124124033
610033540240204
7650064661231
oct142752225114
937248147484
1013281864268
1156a62a2232
1226a80a0064
1313388bcaaa
148ddd7b788
1552b07c2cd
hex317a92a4c

13281864268 has 12 divisors (see below), whose sum is σ = 23283972712. Its totient is φ = 6629300640.

The previous prime is 13281864259. The next prime is 13281864361. The reversal of 13281864268 is 86246818231.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2905305 + ... + 2909872.

Almost surely, 213281864268 is an apocalyptic number.

It is an amenable number.

13281864268 is a deficient number, since it is larger than the sum of its proper divisors (10002108444).

13281864268 is a wasteful number, since it uses less digits than its factorization.

13281864268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5815752 (or 5815750 counting only the distinct ones).

The product of its digits is 884736, while the sum is 49.

The spelling of 13281864268 in words is "thirteen billion, two hundred eighty-one million, eight hundred sixty-four thousand, two hundred sixty-eight".

Divisors: 1 2 4 571 1142 2284 5815177 11630354 23260708 3320466067 6640932134 13281864268