Base | Representation |
---|---|
bin | 11100001000010110… |
… | …110110010101001011 |
3 | 2212222000222220000200 |
4 | 130020112312111023 |
5 | 443324433303012 |
6 | 21513113303243 |
7 | 2116336036554 |
oct | 341026662513 |
9 | 85860886020 |
10 | 30204978507 |
11 | 1189aa17460 |
12 | 5a2b704b23 |
13 | 2b049a3462 |
14 | 166776532b |
15 | bbbb183dc |
hex | 7085b654b |
30204978507 has 48 divisors (see below), whose sum is σ = 49745011680. Its totient is φ = 17492428800.
The previous prime is 30204978491. The next prime is 30204978541. The reversal of 30204978507 is 70587940203.
30204978507 is a `hidden beast` number, since 30 + 2 + 0 + 49 + 78 + 507 = 666.
It is not a de Polignac number, because 30204978507 - 24 = 30204978491 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30204978407) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 224257 + ... + 332717.
It is an arithmetic number, because the mean of its divisors is an integer number (1036354410).
Almost surely, 230204978507 is an apocalyptic number.
30204978507 is a deficient number, since it is larger than the sum of its proper divisors (19540033173).
30204978507 is a wasteful number, since it uses less digits than its factorization.
30204978507 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 108604 (or 108601 counting only the distinct ones).
The product of its (nonzero) digits is 423360, while the sum is 45.
The spelling of 30204978507 in words is "thirty billion, two hundred four million, nine hundred seventy-eight thousand, five hundred seven".
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