Base | Representation |
---|---|
bin | 11100010111100111… |
… | …010110001001101111 |
3 | 2220121212200011112020 |
4 | 130113213112021233 |
5 | 444341001231031 |
6 | 21554340041223 |
7 | 2125564620420 |
oct | 342747261157 |
9 | 86555604466 |
10 | 30460961391 |
11 | 11a11467163 |
12 | 5aa1393213 |
13 | 2b45a2c113 |
14 | 168d75b647 |
15 | bd4330096 |
hex | 7179d626f |
30460961391 has 16 divisors (see below), whose sum is σ = 48017280000. Its totient is φ = 16806047328.
The previous prime is 30460961389. The next prime is 30460961407. The reversal of 30460961391 is 19316906403.
It is not a de Polignac number, because 30460961391 - 21 = 30460961389 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30460961341) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25008391 + ... + 25009608.
It is an arithmetic number, because the mean of its divisors is an integer number (3001080000).
Almost surely, 230460961391 is an apocalyptic number.
30460961391 is a deficient number, since it is larger than the sum of its proper divisors (17556318609).
30460961391 is a wasteful number, since it uses less digits than its factorization.
30460961391 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 50018038.
The product of its (nonzero) digits is 104976, while the sum is 42.
The spelling of 30460961391 in words is "thirty billion, four hundred sixty million, nine hundred sixty-one thousand, three hundred ninety-one".
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