Base | Representation |
---|---|
bin | 11100110100100000… |
… | …101011111100100001 |
3 | 2221212122220020012212 |
4 | 130310200223330201 |
5 | 1001334103124123 |
6 | 22114414531505 |
7 | 2143602401543 |
oct | 346440537441 |
9 | 87778806185 |
10 | 30945754913 |
11 | 12140087767 |
12 | 5bb7806b95 |
13 | 2bc22bb8a8 |
14 | 16d7cb5693 |
15 | c11b92878 |
hex | 73482bf21 |
30945754913 has 32 divisors (see below), whose sum is σ = 33289470720. Its totient is φ = 28717920000.
The previous prime is 30945754901. The next prime is 30945754933. The reversal of 30945754913 is 31945754903.
It is a cyclic number.
It is not a de Polignac number, because 30945754913 - 28 = 30945754657 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30945754933) 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 31 ways as a sum of consecutive naturals, for example, 13932143 + ... + 13934363.
It is an arithmetic number, because the mean of its divisors is an integer number (1040295960).
Almost surely, 230945754913 is an apocalyptic number.
It is an amenable number.
30945754913 is a deficient number, since it is larger than the sum of its proper divisors (2343715807).
30945754913 is a wasteful number, since it uses less digits than its factorization.
30945754913 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2489.
The product of its (nonzero) digits is 2041200, while the sum is 50.
The spelling of 30945754913 in words is "thirty billion, nine hundred forty-five million, seven hundred fifty-four thousand, nine hundred thirteen".
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