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20140020868 = 2211457727747
BaseRepresentation
bin10010110000011100…
…000101010010000100
31220222121000001202211
4102300130011102010
5312221321131433
613130250313204
71312042232002
oct226034052204
956877001684
1020140020868
1185a5575850
123aa0a28804
131b8c6c1616
14d90b33a72
157cd1c88cd
hex4b0705484

20140020868 has 12 divisors (see below), whose sum is σ = 38449130832. Its totient is φ = 9154554920.

The previous prime is 20140020793. The next prime is 20140020869. The reversal of 20140020868 is 86802004102.

It is not an unprimeable number, because it can be changed into a prime (20140020869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228863830 + ... + 228863917.

It is an arithmetic number, because the mean of its divisors is an integer number (3204094236).

Almost surely, 220140020868 is an apocalyptic number.

It is an amenable number.

20140020868 is a deficient number, since it is larger than the sum of its proper divisors (18309109964).

20140020868 is a wasteful number, since it uses less digits than its factorization.

20140020868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457727762 (or 457727760 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The spelling of 20140020868 in words is "twenty billion, one hundred forty million, twenty thousand, eight hundred sixty-eight".

Divisors: 1 2 4 11 22 44 457727747 915455494 1830910988 5035005217 10070010434 20140020868