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20137944200 = 23521119481769
BaseRepresentation
bin10010110000010100…
…001010010010001000
31220222110002120010012
4102300110022102020
5312220303203300
613130134011052
71312015462403
oct226024122210
956873076105
1020137944200
1185a43875a0
123aa01a6a88
131b8c14531a
14d90752d3a
157cce18435
hex4b050a488

20137944200 has 96 divisors (see below), whose sum is σ = 53765532000. Its totient is φ = 6937459200.

The previous prime is 20137944191. The next prime is 20137944223. The reversal of 20137944200 is 244973102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199085 + ... + 282684.

It is an arithmetic number, because the mean of its divisors is an integer number (560057625).

Almost surely, 220137944200 is an apocalyptic number.

20137944200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20137944200 is an abundant number, since it is smaller than the sum of its proper divisors (33627587800).

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

20137944200 is a wasteful number, since it uses less digits than its factorization.

20137944200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481815 (or 481806 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 20137944200 in words is "twenty billion, one hundred thirty-seven million, nine hundred forty-four thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 19 20 22 25 38 40 44 50 55 76 88 95 100 110 152 190 200 209 220 275 380 418 440 475 550 760 836 950 1045 1100 1672 1900 2090 2200 3800 4180 5225 8360 10450 20900 41800 481769 963538 1927076 2408845 3854152 4817690 5299459 9153611 9635380 10598918 12044225 18307222 19270760 21197836 24088450 26497295 36614444 42395672 45768055 48176900 52994590 73228888 91536110 96353800 100689721 105989180 132486475 183072220 201379442 211978360 228840275 264972950 366144440 402758884 457680550 503448605 529945900 805517768 915361100 1006897210 1059891800 1830722200 2013794420 2517243025 4027588840 5034486050 10068972100 20137944200