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13105104912 = 2433107509557
BaseRepresentation
bin11000011010010000…
…00000100000010000
31020211022120022022000
430031020000200100
5203314401324122
610004223514000
7642520360644
oct141510004020
936738508260
1013105104912
115615543319
122658a58900
13130b0b1c63
148c46c8c24
1551a7b40ac
hex30d200810

13105104912 has 160 divisors (see below), whose sum is σ = 38110953600. Its totient is φ = 4311286272.

The previous prime is 13105104907. The next prime is 13105104917. The reversal of 13105104912 is 21940150131.

It is a happy number.

13105104912 is a `hidden beast` number, since 131 + 0 + 510 + 4 + 9 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (13105104907) and next prime (13105104917).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13105104917) 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, 23527738 + ... + 23528294.

It is an arithmetic number, because the mean of its divisors is an integer number (238193460).

Almost surely, 213105104912 is an apocalyptic number.

13105104912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13105104912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19055476800).

13105104912 is an abundant number, since it is smaller than the sum of its proper divisors (25005848688).

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

13105104912 is a wasteful number, since it uses less digits than its factorization.

13105104912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190 (or 1178 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The spelling of 13105104912 in words is "thirteen billion, one hundred five million, one hundred four thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 107 108 144 214 216 321 428 432 509 557 642 856 963 1018 1114 1284 1527 1671 1712 1926 2036 2228 2568 2889 3054 3342 3852 4072 4456 4581 5013 5136 5778 6108 6684 7704 8144 8912 9162 10026 11556 12216 13368 13743 15039 15408 18324 20052 23112 24432 26736 27486 30078 36648 40104 46224 54463 54972 59599 60156 73296 80208 108926 109944 119198 120312 163389 178797 217852 219888 238396 240624 283513 326778 357594 435704 476792 490167 536391 567026 653556 715188 850539 871408 953584 980334 1072782 1134052 1307112 1430376 1470501 1609173 1701078 1960668 2145564 2268104 2551617 2614224 2860752 2941002 3218346 3402156 3921336 4291128 4536208 5103234 5882004 6436692 6804312 7654851 7842672 8582256 10206468 11764008 12873384 13608624 15309702 20412936 23528016 25746768 30335891 30619404 40825872 60671782 61238808 91007673 121343564 122477616 182015346 242687128 273023019 364030692 485374256 546046038 728061384 819069057 1092092076 1456122768 1638138114 2184184152 3276276228 4368368304 6552552456 13105104912