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20200001910 = 23511292110763
BaseRepresentation
bin10010110100000000…
…111001000101110110
31221010202212102021220
4102310000321011312
5312332200030120
613140232051210
71313401116564
oct226400710566
957122772256
1020200001910
118626413460
123ab8b33b06
131b9bc62a6a
14d98aa8a34
157d35c5b40
hex4b4039176

20200001910 has 64 divisors (see below), whose sum is σ = 54711002880. Its totient is φ = 4728106880.

The previous prime is 20200001849. The next prime is 20200001917. The reversal of 20200001910 is 1910000202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20200001910.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200001917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1045812 + ... + 1064951.

It is an arithmetic number, because the mean of its divisors is an integer number (854859420).

Almost surely, 220200001910 is an apocalyptic number.

20200001910 is an abundant number, since it is smaller than the sum of its proper divisors (34511000970).

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

20200001910 is a wasteful number, since it uses less digits than its factorization.

20200001910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110813.

The product of its (nonzero) digits is 36, while the sum is 15.

The spelling of 20200001910 in words is "twenty billion, two hundred million, one thousand, nine hundred ten".

Divisors: 1 2 3 5 6 10 11 15 22 29 30 33 55 58 66 87 110 145 165 174 290 319 330 435 638 870 957 1595 1914 3190 4785 9570 2110763 4221526 6332289 10553815 12664578 21107630 23218393 31661445 46436786 61212127 63322890 69655179 116091965 122424254 139310358 183636381 232183930 306060635 348275895 367272762 612121270 673333397 696551790 918181905 1346666794 1836363810 2020000191 3366666985 4040000382 6733333970 10100000955 20200001910