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205107000568 = 2329953927683
BaseRepresentation
bin1011111100000101010…
…1000111010011111000
3201121102021000012020121
42333001111013103320
511330024343004233
6234120322503024
720550512511331
oct2770125072370
9647367005217
10205107000568
1179a92611328
1233901b04a74
13164593a2ac2
149cda477288
1555069b492d
hex2fc15474f8

205107000568 has 32 divisors (see below), whose sum is σ = 398254741200. Its totient is φ = 98913165568.

The previous prime is 205107000563. The next prime is 205107000607. The reversal of 205107000568 is 865000701502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205107000563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242746 + ... + 684937.

Almost surely, 2205107000568 is an apocalyptic number.

205107000568 is the 242079-th centered heptagonal number.

It is an amenable number.

205107000568 is a deficient number, since it is larger than the sum of its proper divisors (193147740632).

205107000568 is a wasteful number, since it uses less digits than its factorization.

205107000568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928671 (or 928667 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 205107000568 in words is "two hundred five billion, one hundred seven million, five hundred sixty-eight", and thus it is an aban number.

Divisors: 1 2 4 8 29 58 116 232 953 1906 3812 7624 27637 55274 110548 221096 927683 1855366 3710732 7421464 26902807 53805614 107611228 215222456 884081899 1768163798 3536327596 7072655192 25638375071 51276750142 102553500284 205107000568