Base | Representation |
---|---|
bin | 11100100001111010… |
… | …000001101110110101 |
3 | 2221001220120200012210 |
4 | 130201322001232311 |
5 | 1000214202140040 |
6 | 22023425004033 |
7 | 2133062364342 |
oct | 344172015665 |
9 | 87056520183 |
10 | 30633630645 |
11 | 11a9a982122 |
12 | 5b2b183619 |
13 | 2b72737387 |
14 | 16a86677c9 |
15 | be458b480 |
hex | 721e81bb5 |
30633630645 has 32 divisors (see below), whose sum is σ = 50172198912. Its totient is φ = 15952087872.
The previous prime is 30633630619. The next prime is 30633630659. The reversal of 30633630645 is 54603633603.
It is not a de Polignac number, because 30633630645 - 25 = 30633630613 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2149132 + ... + 2163338.
It is an arithmetic number, because the mean of its divisors is an integer number (1567881216).
Almost surely, 230633630645 is an apocalyptic number.
It is an amenable number.
30633630645 is a deficient number, since it is larger than the sum of its proper divisors (19538568267).
30633630645 is a wasteful number, since it uses less digits than its factorization.
30633630645 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17601.
The product of its (nonzero) digits is 349920, while the sum is 39.
The spelling of 30633630645 in words is "thirty billion, six hundred thirty-three million, six hundred thirty thousand, six hundred forty-five".
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