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12847663660 = 2251358618431
BaseRepresentation
bin10111111011100011…
…11100101000101100
31020011101010221021211
423331301330220230
5202303000214120
65522510004204
7633243224236
oct137561745054
936141127254
1012847663660
1154a3197957
1225a67a6664
131299965560
1489c433256
15502db025a
hex2fdc7ca2c

12847663660 has 48 divisors (see below), whose sum is σ = 29063889792. Its totient is φ = 4742380800.

The previous prime is 12847663651. The next prime is 12847663727. The reversal of 12847663660 is 6636674821.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1519645 + ... + 1528075.

It is an arithmetic number, because the mean of its divisors is an integer number (605497704).

Almost surely, 212847663660 is an apocalyptic number.

12847663660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12847663660 is an abundant number, since it is smaller than the sum of its proper divisors (16216226132).

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

12847663660 is a wasteful number, since it uses less digits than its factorization.

12847663660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14314 (or 14312 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 12847663660 in words is "twelve billion, eight hundred forty-seven million, six hundred sixty-three thousand, six hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 5861 8431 11722 16862 23444 29305 33724 42155 58610 76193 84310 109603 117220 152386 168620 219206 304772 380965 438412 548015 761930 1096030 1523860 2192060 49414091 98828182 197656364 247070455 494140910 642383183 988281820 1284766366 2569532732 3211915915 6423831830 12847663660