Base | Representation |
---|---|
bin | 11100010100011010… |
… | …110100011011110010 |
3 | 2220111010210012220112 |
4 | 130110122310123302 |
5 | 444233240032111 |
6 | 21545142541322 |
7 | 2124344114150 |
oct | 342432643362 |
9 | 86433705815 |
10 | 30407345906 |
11 | 11994177043 |
12 | 5a87437842 |
13 | 2b378a9192 |
14 | 16865a23d0 |
15 | bce78de8b |
hex | 7146b46f2 |
30407345906 has 32 divisors (see below), whose sum is σ = 53821946880. Its totient is φ = 12608164800.
The previous prime is 30407345887. The next prime is 30407345911. The reversal of 30407345906 is 60954370403.
It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2610776 + ... + 2622396.
It is an arithmetic number, because the mean of its divisors is an integer number (1681935840).
Almost surely, 230407345906 is an apocalyptic number.
30407345906 is a deficient number, since it is larger than the sum of its proper divisors (23414600974).
30407345906 is a wasteful number, since it uses less digits than its factorization.
30407345906 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17690.
The product of its (nonzero) digits is 272160, while the sum is 41.
The spelling of 30407345906 in words is "thirty billion, four hundred seven million, three hundred forty-five thousand, nine hundred six".
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