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20000310209 = 1110716992617
BaseRepresentation
bin10010101000000111…
…001000001111000001
31220121212010000202222
4102220013020033001
5311430034411314
613104340020425
71305424555205
oct225007101701
956555100688
1020000310209
1185337210a0
123a62091715
131b69785ba9
14d7a366b05
157c0cccc8e
hex4a81c83c1

20000310209 has 8 divisors (see below), whose sum is σ = 22022432928. Its totient is φ = 18012172960.

The previous prime is 20000310191. The next prime is 20000310247. The reversal of 20000310209 is 90201300002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20000310209 - 212 = 20000306113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000316209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8495132 + ... + 8497485.

It is an arithmetic number, because the mean of its divisors is an integer number (2752804116).

Almost surely, 220000310209 is an apocalyptic number.

It is an amenable number.

20000310209 is a deficient number, since it is larger than the sum of its proper divisors (2022122719).

20000310209 is a wasteful number, since it uses less digits than its factorization.

20000310209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16992735.

The product of its (nonzero) digits is 108, while the sum is 17.

The spelling of 20000310209 in words is "twenty billion, three hundred ten thousand, two hundred nine".

Divisors: 1 11 107 1177 16992617 186918787 1818210019 20000310209