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10208013868 = 22131741281647
BaseRepresentation
bin10011000000111000…
…11110111000101100
3222100102011211111201
421200130132320230
5131401222420433
64404533055244
7510651454243
oct114034367054
928312154451
1010208013868
1143691809a8
121b8a787524
13c68b1c2c0
146cba2d95a
153eb29ba7d
hex26071ee2c

10208013868 has 48 divisors (see below), whose sum is σ = 20866737024. Its totient is φ = 4326082560.

The previous prime is 10208013863. The next prime is 10208013869. The reversal of 10208013868 is 86831080201.

It is not an unprimeable number, because it can be changed into a prime (10208013863) 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, 104580 + ... + 177067.

It is an arithmetic number, because the mean of its divisors is an integer number (434723688).

Almost surely, 210208013868 is an apocalyptic number.

It is an amenable number.

10208013868 is an abundant number, since it is smaller than the sum of its proper divisors (10658723156).

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

10208013868 is a wasteful number, since it uses less digits than its factorization.

10208013868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281722 (or 281720 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The spelling of 10208013868 in words is "ten billion, two hundred eight million, thirteen thousand, eight hundred sixty-eight".

Divisors: 1 2 4 13 17 26 34 41 52 68 82 164 221 442 533 697 884 1066 1394 2132 2788 9061 18122 36244 281647 563294 1126588 3661411 4787999 7322822 9575998 11547527 14645644 19151996 23095054 46190108 62243987 124487974 150117851 196307959 248975948 300235702 392615918 600471404 785231836 2552003467 5104006934 10208013868