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20050005315 = 353143118291
BaseRepresentation
bin10010101011000100…
…101100110101000011
31220202022121210122110
4102223010230311003
5312030300132230
613113313110403
71306600142664
oct225304546503
956668553573
1020050005315
11855978382a
123a76858403
131b76b65592
14d82bc136b
157c53474b0
hex4ab12cd43

20050005315 has 16 divisors (see below), whose sum is σ = 33114848256. Its totient is φ = 10348389600.

The previous prime is 20050005277. The next prime is 20050005317. The reversal of 20050005315 is 51350005002.

It is not a de Polignac number, because 20050005315 - 27 = 20050005187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20050005291 and 20050005300.

It is not an unprimeable number, because it can be changed into a prime (20050005317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21558681 + ... + 21559610.

It is an arithmetic number, because the mean of its divisors is an integer number (2069678016).

Almost surely, 220050005315 is an apocalyptic number.

20050005315 is a deficient number, since it is larger than the sum of its proper divisors (13064842941).

20050005315 is a wasteful number, since it uses less digits than its factorization.

20050005315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43118330.

The product of its (nonzero) digits is 750, while the sum is 21.

The spelling of 20050005315 in words is "twenty billion, fifty million, five thousand, three hundred fifteen".

Divisors: 1 3 5 15 31 93 155 465 43118291 129354873 215591455 646774365 1336667021 4010001063 6683335105 20050005315