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12881634093 = 337312975039
BaseRepresentation
bin10111111111100111…
…00010001100101101
31020020202001210222000
423333303202030231
5202340144242333
65530122042513
7634135040346
oct137763421455
936222053860
1012881634093
11551038a399
1225b6049439
1312a39ca7c3
148a2b570cd
15505d70713
hex2ffce232d

12881634093 has 32 divisors (see below), whose sum is σ = 19364083200. Its totient is φ = 8461905408.

The previous prime is 12881634089. The next prime is 12881634107. The reversal of 12881634093 is 39043618821.

12881634093 is a `hidden beast` number, since 1 + 2 + 8 + 8 + 1 + 634 + 0 + 9 + 3 = 666.

It is not a de Polignac number, because 12881634093 - 22 = 12881634089 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12881634083) 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, 2553868 + ... + 2558906.

It is an arithmetic number, because the mean of its divisors is an integer number (605127600).

Almost surely, 212881634093 is an apocalyptic number.

It is an amenable number.

12881634093 is a deficient number, since it is larger than the sum of its proper divisors (6482449107).

12881634093 is a wasteful number, since it uses less digits than its factorization.

12881634093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6418 (or 6412 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 12881634093 in words is "twelve billion, eight hundred eighty-one million, six hundred thirty-four thousand, ninety-three".

Divisors: 1 3 9 27 73 219 657 1297 1971 3891 5039 11673 15117 35019 45351 94681 136053 284043 367847 852129 1103541 2556387 3310623 6535583 9931869 19606749 58820247 176460741 477097559 1431292677 4293878031 12881634093