Base | Representation |
---|---|
bin | 11110111011110… |
… | …010100011001011 |
3 | 1100011120102110212 |
4 | 132323302203023 |
5 | 2030330140102 |
6 | 123255431335 |
7 | 15601225313 |
oct | 3673624313 |
9 | 1304512425 |
10 | 518990027 |
11 | 246a57986 |
12 | 12598554b |
13 | 836a38ba |
14 | 4ccda443 |
15 | 30869c52 |
hex | 1eef28cb |
518990027 has 8 divisors (see below), whose sum is σ = 530918400. Its totient is φ = 507098664.
The previous prime is 518990023. The next prime is 518990041. The reversal of 518990027 is 720099815.
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 518990027 - 22 = 518990023 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (518990023) 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, 20174 + ... + 38012.
It is an arithmetic number, because the mean of its divisors is an integer number (66364800).
Almost surely, 2518990027 is an apocalyptic number.
518990027 is a deficient number, since it is larger than the sum of its proper divisors (11928373).
518990027 is a wasteful number, since it uses less digits than its factorization.
518990027 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18505.
The product of its (nonzero) digits is 45360, while the sum is 41.
The square root of 518990027 is about 22781.3526156811. The cubic root of 518990027 is about 803.6241957755.
The spelling of 518990027 in words is "five hundred eighteen million, nine hundred ninety thousand, twenty-seven".
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