Base | Representation |
---|---|
bin | 111001010011… |
… | …1101001011100 |
3 | 2002112112110220 |
4 | 1302213221130 |
5 | 30142444222 |
6 | 2552001340 |
7 | 513252015 |
oct | 162475134 |
9 | 62475426 |
10 | 30046812 |
11 | 15a62684 |
12 | a090250 |
13 | 62c03a3 |
14 | 3dc200c |
15 | 2987b5c |
hex | 1ca7a5c |
30046812 has 72 divisors (see below), whose sum is σ = 75640320. Its totient is φ = 9270720.
The previous prime is 30046801. The next prime is 30046859. The reversal of 30046812 is 21864003.
It is a happy number.
It is a super-2 number, since 2×300468122 = 1805621822726688, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 509239 + ... + 509297.
It is an arithmetic number, because the mean of its divisors is an integer number (1050560).
Almost surely, 230046812 is an apocalyptic number.
It is an amenable number.
30046812 is an abundant number, since it is smaller than the sum of its proper divisors (45593508).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30046812 is a wasteful number, since it uses less digits than its factorization.
30046812 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 171 (or 132 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 24.
The square root of 30046812 is about 5481.4972407181. The cubic root of 30046812 is about 310.8847841256.
The spelling of 30046812 in words is "thirty million, forty-six thousand, eight hundred twelve".
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