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20051366304 = 253208868399
BaseRepresentation
bin10010101011001001…
…111001000110100000
31220202102011221120110
4102223021321012200
5312031122210204
613113402211320
71306614541614
oct225311710640
956672157513
1020051366304
11855a523312
123a771b3b40
131b77220bb8
14d83057344
157c5515889
hex4ab2791a0

20051366304 has 24 divisors (see below), whose sum is σ = 52634836800. Its totient is φ = 6683788736.

The previous prime is 20051366299. The next prime is 20051366327. The reversal of 20051366304 is 40366315002.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104434104 + ... + 104434295.

It is an arithmetic number, because the mean of its divisors is an integer number (2193118200).

Almost surely, 220051366304 is an apocalyptic number.

20051366304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20051366304 is an abundant number, since it is smaller than the sum of its proper divisors (32583470496).

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

20051366304 is a wasteful number, since it uses less digits than its factorization.

20051366304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208868412 (or 208868404 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 20051366304 in words is "twenty billion, fifty-one million, three hundred sixty-six thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 208868399 417736798 626605197 835473596 1253210394 1670947192 2506420788 3341894384 5012841576 6683788768 10025683152 20051366304