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220086960 = 24356713687
BaseRepresentation
bin11010001111001…
…00001010110000
3120100010120112220
431013210022300
5422320240320
633501121040
75311464642
oct1507441260
9510116486
10220086960
11103262655
1261859180
133679b192
1421330892
15144c5e40
hexd1e42b0

220086960 has 80 divisors (see below), whose sum is σ = 692503296. Its totient is φ = 57809664.

The previous prime is 220086929. The next prime is 220086961. The reversal of 220086960 is 69680022.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (220086961) 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, 9237 + ... + 22923.

Almost surely, 2220086960 is an apocalyptic number.

220086960 is a gapful number since it is divisible by the number (20) 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 220086960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346251648).

220086960 is an abundant number, since it is smaller than the sum of its proper divisors (472416336).

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

220086960 is a wasteful number, since it uses less digits than its factorization.

220086960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13770 (or 13764 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 220086960 is about 14835.3281055729. The cubic root of 220086960 is about 603.7606027569.

The spelling of 220086960 in words is "two hundred twenty million, eighty-six thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 67 80 120 134 201 240 268 335 402 536 670 804 1005 1072 1340 1608 2010 2680 3216 4020 5360 8040 13687 16080 27374 41061 54748 68435 82122 109496 136870 164244 205305 218992 273740 328488 410610 547480 656976 821220 917029 1094960 1642440 1834058 2751087 3284880 3668116 4585145 5502174 7336232 9170290 11004348 13755435 14672464 18340580 22008696 27510870 36681160 44017392 55021740 73362320 110043480 220086960