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13600998404 = 2272312163443
BaseRepresentation
bin11001010101010111…
…01100010000000100
31022002212200022021122
430222223230100010
5210323323422104
610125340333112
7661021402400
oct145253542004
938085608248
1013600998404
11584a455454
122776b44198
131389a59b66
149304d2100
155490ba6be
hex32aaec404

13600998404 has 108 divisors (see below), whose sum is σ = 28850208912. Its totient is φ = 5593704480.

The previous prime is 13600998401. The next prime is 13600998419. The reversal of 13600998404 is 40489900631.

It is a super-2 number, since 2×136009984042 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13600998401) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 30701807 + ... + 30702249.

It is an arithmetic number, because the mean of its divisors is an integer number (267131564).

Almost surely, 213600998404 is an apocalyptic number.

13600998404 is a gapful number since it is divisible by the number (14) 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 13600998404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14425104456).

13600998404 is an abundant number, since it is smaller than the sum of its proper divisors (15249210508).

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

13600998404 is a wasteful number, since it uses less digits than its factorization.

13600998404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 13600998404 in words is "thirteen billion, six hundred million, nine hundred ninety-eight thousand, four hundred four".

Divisors: 1 2 4 7 14 28 31 49 62 98 124 163 196 217 326 434 443 652 868 886 961 1141 1519 1772 1922 2282 3038 3101 3844 4564 5053 6076 6202 6727 7987 10106 12404 13454 13733 15974 20212 21707 26908 27466 31948 35371 43414 47089 54932 70742 72209 86828 94178 96131 141484 144418 156643 188356 192262 247597 288836 313286 384524 425723 495194 505463 626572 672917 851446 990388 1010926 1096501 1345834 1702892 2021852 2193002 2238479 2691668 2980061 3538241 4386004 4476958 5960122 7076482 7675507 8953916 11920244 14152964 15351014 15669353 20860427 30702028 31338706 41720854 62677412 69392849 83441708 109685471 138785698 219370942 277571396 438741884 485749943 971499886 1942999772 3400249601 6800499202 13600998404