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12136037860 = 22517231639521
BaseRepresentation
bin10110100110101110…
…10011110111100100
31011022210002121012201
423103113103313210
5144323311202420
65324125224244
7606512422402
oct132327236744
934283077181
1012136037860
115168527961
122428402084
1311b53b55bb
14831b10472
154b069310a
hex2d35d3de4

12136037860 has 96 divisors (see below), whose sum is σ = 28333815552. Its totient is φ = 4342947840.

The previous prime is 12136037857. The next prime is 12136037861. The reversal of 12136037860 is 6873063121.

It is not an unprimeable number, because it can be changed into a prime (12136037861) 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, 1269900 + ... + 1279420.

It is an arithmetic number, because the mean of its divisors is an integer number (295143912).

Almost surely, 212136037860 is an apocalyptic number.

12136037860 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 12136037860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14166907776).

12136037860 is an abundant number, since it is smaller than the sum of its proper divisors (16197777692).

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

12136037860 is a wasteful number, since it uses less digits than its factorization.

12136037860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9733 (or 9731 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 12136037860 in words is "twelve billion, one hundred thirty-six million, thirty-seven thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 17 20 23 34 46 68 85 92 115 163 170 230 326 340 391 460 652 782 815 1564 1630 1955 2771 3260 3749 3910 5542 7498 7820 9521 11084 13855 14996 18745 19042 27710 37490 38084 47605 55420 63733 74980 95210 127466 161857 190420 218983 254932 318665 323714 437966 637330 647428 809285 875932 1094915 1274660 1551923 1618570 2189830 3103846 3237140 3722711 4379660 6207692 7445422 7759615 14890844 15519230 18613555 26382691 31038460 35694229 37227110 52765382 71388458 74454220 105530764 131913455 142776916 178471145 263826910 356942290 527653820 606801893 713884580 1213603786 2427207572 3034009465 6068018930 12136037860