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2137685360 = 245373372143
BaseRepresentation
bin111111101101010…
…0111110101110000
312111222102200000212
41333122213311300
513334221412420
6552042003252
7103655011556
oct17732476560
95458380025
102137685360
119a7738718
124b7aa6528
13280b53ca5
14163c99bd6
15c7a0d3c5
hex7f6a7d70

2137685360 has 80 divisors (see below), whose sum is σ = 5121981696. Its totient is φ = 829108224.

The previous prime is 2137685311. The next prime is 2137685371. The reversal of 2137685360 is 635867312.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 996449 + ... + 998591.

Almost surely, 22137685360 is an apocalyptic number.

2137685360 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 2137685360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2560990848).

2137685360 is an abundant number, since it is smaller than the sum of its proper divisors (2984296336).

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

2137685360 is a wasteful number, since it uses less digits than its factorization.

2137685360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530 (or 2524 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 2137685360 is about 46235.1096029846. The cubic root of 2137685360 is about 1288.1939672901.

The spelling of 2137685360 in words is "two billion, one hundred thirty-seven million, six hundred eighty-five thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 37 40 74 80 148 185 296 337 370 592 674 740 1348 1480 1685 2143 2696 2960 3370 4286 5392 6740 8572 10715 12469 13480 17144 21430 24938 26960 34288 42860 49876 62345 79291 85720 99752 124690 158582 171440 199504 249380 317164 396455 498760 634328 722191 792910 997520 1268656 1444382 1585820 2888764 3171640 3610955 5777528 6343280 7221910 11555056 14443820 26721067 28887640 53442134 57775280 106884268 133605335 213768536 267210670 427537072 534421340 1068842680 2137685360