Base | Representation |
---|---|
bin | 11011111100011101… |
… | …000010100101101010 |
3 | 2212110010012220021222 |
4 | 123330131002211222 |
5 | 442422322244421 |
6 | 21441221102042 |
7 | 2111362425551 |
oct | 337435024552 |
9 | 85403186258 |
10 | 30005274986 |
11 | 117a8217225 |
12 | 5994857922 |
13 | 2aa24c10ab |
14 | 164901cd98 |
15 | ba931bcab |
hex | 6fc74296a |
30005274986 has 16 divisors (see below), whose sum is σ = 46232786184. Its totient is φ = 14594494464.
The previous prime is 30005274967. The next prime is 30005275039. The reversal of 30005274986 is 68947250003.
It can be written as a sum of positive squares in 4 ways, for example, as 19661367961 + 10343907025 = 140219^2 + 101705^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406466 + ... + 474578.
Almost surely, 230005274986 is an apocalyptic number.
30005274986 is a deficient number, since it is larger than the sum of its proper divisors (16227511198).
30005274986 is a wasteful number, since it uses less digits than its factorization.
30005274986 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 74105.
The product of its (nonzero) digits is 362880, while the sum is 44.
The spelling of 30005274986 in words is "thirty billion, five million, two hundred seventy-four thousand, nine hundred eighty-six".
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