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13685033480 = 2351925916063
BaseRepresentation
bin11001011111011000…
…10000101000001000
31022022201210201201212
430233230100220020
5211011332032410
610141541432252
7663061602536
oct145754205010
938281721655
1013685033480
115892932228
12279b10b688
1313a12a0a61
1493b729156
15551669b05
hex32fb10a08

13685033480 has 96 divisors (see below), whose sum is σ = 33050073600. Its totient is φ = 5097693312.

The previous prime is 13685033447. The next prime is 13685033489. The reversal of 13685033480 is 8433058631.

It is not an unprimeable number, because it can be changed into a prime (13685033489) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 843929 + ... + 859991.

It is an arithmetic number, because the mean of its divisors is an integer number (344271600).

Almost surely, 213685033480 is an apocalyptic number.

13685033480 is a gapful number since it is divisible by the number (10) 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 13685033480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16525036800).

13685033480 is an abundant number, since it is smaller than the sum of its proper divisors (19365040120).

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

13685033480 is a wasteful number, since it uses less digits than its factorization.

13685033480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16171 (or 16148 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 13685033480 in words is "thirteen billion, six hundred eighty-five million, thirty-three thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 59 76 95 118 152 190 236 295 361 380 472 590 722 760 1121 1180 1444 1805 2242 2360 2888 3610 4484 5605 7220 8968 11210 14440 16063 21299 22420 32126 42598 44840 64252 80315 85196 106495 128504 160630 170392 212990 305197 321260 425980 610394 642520 851960 947717 1220788 1525985 1895434 2441576 3051970 3790868 4738585 5798743 6103940 7581736 9477170 11597486 12207880 18006623 18954340 23194972 28993715 36013246 37908680 46389944 57987430 72026492 90033115 115974860 144052984 180066230 231949720 342125837 360132460 684251674 720264920 1368503348 1710629185 2737006696 3421258370 6842516740 13685033480