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20000680524 = 223211192658251
BaseRepresentation
bin10010101000001000…
…100010101001001100
31220121212210211202100
4102220020202221030
5311430133234044
613104351555100
71305430656636
oct225010425114
956555724670
1020000680524
118533954340
123a6222ba90
131b69885606
14d7a421a56
157c0d52869
hex4a8222a4c

20000680524 has 72 divisors (see below), whose sum is σ = 58056223680. Its totient is φ = 5741820000.

The previous prime is 20000680507. The next prime is 20000680529. The reversal of 20000680524 is 42508600002.

It is a super-2 number, since 2×200006805242 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20000680529) 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, 1321602 + ... + 1336649.

It is an arithmetic number, because the mean of its divisors is an integer number (806336440).

Almost surely, 220000680524 is an apocalyptic number.

It is an amenable number.

20000680524 is an abundant number, since it is smaller than the sum of its proper divisors (38055543156).

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

20000680524 is a wasteful number, since it uses less digits than its factorization.

20000680524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658291 (or 2658286 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The spelling of 20000680524 in words is "twenty billion, six hundred eighty thousand, five hundred twenty-four".

Divisors: 1 2 3 4 6 9 11 12 18 19 22 33 36 38 44 57 66 76 99 114 132 171 198 209 228 342 396 418 627 684 836 1254 1881 2508 3762 7524 2658251 5316502 7974753 10633004 15949506 23924259 29240761 31899012 47848518 50506769 58481522 87722283 95697036 101013538 116963044 151520307 175444566 202027076 263166849 303040614 350889132 454560921 526333698 555574459 606081228 909121842 1052667396 1111148918 1666723377 1818243684 2222297836 3333446754 5000170131 6666893508 10000340262 20000680524