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13298918712 = 23317149218761
BaseRepresentation
bin11000110001010110…
…10110010100111000
31021022211021001211220
430120223112110320
5204214010344322
610035345552040
7650362641522
oct143053262470
937284231756
1013298918712
115704990512
1226b1945620
13133c2b1591
1490233aa12
1552c7ea55c
hex318ad6538

13298918712 has 64 divisors (see below), whose sum is σ = 35439444000. Its totient is φ = 4144189440.

The previous prime is 13298918683. The next prime is 13298918713. The reversal of 13298918712 is 21781989231.

It is a super-2 number, since 2×132989187122 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13298918713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48589 + ... + 170172.

Almost surely, 213298918712 is an apocalyptic number.

13298918712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13298918712 is an abundant number, since it is smaller than the sum of its proper divisors (22140525288).

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

13298918712 is a wasteful number, since it uses less digits than its factorization.

13298918712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218936 (or 218932 counting only the distinct ones).

The product of its digits is 435456, while the sum is 51.

The spelling of 13298918712 in words is "thirteen billion, two hundred ninety-eight million, nine hundred eighteen thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 149 204 298 408 447 596 894 1192 1788 2533 3576 5066 7599 10132 15198 20264 30396 60792 218761 437522 656283 875044 1312566 1750088 2625132 3718937 5250264 7437874 11156811 14875748 22313622 29751496 32595389 44627244 65190778 89254488 97786167 130381556 195572334 260763112 391144668 554121613 782289336 1108243226 1662364839 2216486452 3324729678 4432972904 6649459356 13298918712