Base | Representation |
---|---|
bin | 111001011011… |
… | …1000010101100 |
3 | 2002122201222022 |
4 | 1302313002230 |
5 | 30202003433 |
6 | 2553205312 |
7 | 513633605 |
oct | 162670254 |
9 | 62581868 |
10 | 30109868 |
11 | 15aa5a98 |
12 | a100838 |
13 | 6312cb9 |
14 | 3ddadac |
15 | 299b698 |
hex | 1cb70ac |
30109868 has 6 divisors (see below), whose sum is σ = 52692276. Its totient is φ = 15054932.
The previous prime is 30109861. The next prime is 30109903. The reversal of 30109868 is 86890103.
It is not an unprimeable number, because it can be changed into a prime (30109861) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3763730 + ... + 3763737.
It is an arithmetic number, because the mean of its divisors is an integer number (8782046).
Almost surely, 230109868 is an apocalyptic number.
It is an amenable number.
30109868 is a deficient number, since it is larger than the sum of its proper divisors (22582408).
30109868 is a wasteful number, since it uses less digits than its factorization.
30109868 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7527471 (or 7527469 counting only the distinct ones).
The product of its (nonzero) digits is 10368, while the sum is 35.
The square root of 30109868 is about 5487.2459394490. The cubic root of 30109868 is about 311.1021056161.
The spelling of 30109868 in words is "thirty million, one hundred nine thousand, eight hundred sixty-eight".
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