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20008573895 = 517235394987
BaseRepresentation
bin10010101000100110…
…101001101111000111
31220122102122212102102
4102220212221233013
5311434143331040
613105233102315
71305555033452
oct225046515707
956572585372
1020008573895
118538355792
123a649b799b
131b6b3ba34b
14d7b4b8499
157c18b1515
hex4a89a9bc7

20008573895 has 8 divisors (see below), whose sum is σ = 25422658704. Its totient is φ = 15065279104.

The previous prime is 20008573891. The next prime is 20008573913. The reversal of 20008573895 is 59837580002.

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 20008573895 - 22 = 20008573891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20008573891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117697409 + ... + 117697578.

It is an arithmetic number, because the mean of its divisors is an integer number (3177832338).

Almost surely, 220008573895 is an apocalyptic number.

20008573895 is a deficient number, since it is larger than the sum of its proper divisors (5414084809).

20008573895 is a wasteful number, since it uses less digits than its factorization.

20008573895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235395009.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 20008573895 in words is "twenty billion, eight million, five hundred seventy-three thousand, eight hundred ninety-five".

Divisors: 1 5 17 85 235394987 1176974935 4001714779 20008573895