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20508860095 = 517241280707
BaseRepresentation
bin10011000110011011…
…000101111010111111
31221221022001001001221
4103012123011322333
5314000232010340
613231024014211
71324141302013
oct230633057277
957838031057
1020508860095
118774798159
123b84461367
131c1ac42799
14dc7b06543
1580078444a
hex4c66c5ebf

20508860095 has 8 divisors (see below), whose sum is σ = 26058316464. Its totient is φ = 15441965184.

The previous prime is 20508860077. The next prime is 20508860101. The reversal of 20508860095 is 59006880502.

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 20508860095 - 29 = 20508859583 is a prime.

It is a super-2 number, since 2×205088600952 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120640269 + ... + 120640438.

It is an arithmetic number, because the mean of its divisors is an integer number (3257289558).

Almost surely, 220508860095 is an apocalyptic number.

20508860095 is a deficient number, since it is larger than the sum of its proper divisors (5549456369).

20508860095 is a wasteful number, since it uses less digits than its factorization.

20508860095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241280729.

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 20508860095 in words is "twenty billion, five hundred eight million, eight hundred sixty thousand, ninety-five".

Divisors: 1 5 17 85 241280707 1206403535 4101772019 20508860095