Base | Representation |
---|---|
bin | 111010001100… |
… | …0110100100001 |
3 | 2010102002100200 |
4 | 1310120310201 |
5 | 30302312434 |
6 | 3005535413 |
7 | 520222341 |
oct | 164306441 |
9 | 63362320 |
10 | 30510369 |
11 | 1624998a |
12 | a274569 |
13 | 6423396 |
14 | 40a2d21 |
15 | 2a2a199 |
hex | 1d18d21 |
30510369 has 6 divisors (see below), whose sum is σ = 44070546. Its totient is φ = 20340240.
The previous prime is 30510343. The next prime is 30510373. The reversal of 30510369 is 96301503.
It can be written as a sum of positive squares in only one way, i.e., 17114769 + 13395600 = 4137^2 + 3660^2 .
It is not a de Polignac number, because 30510369 - 27 = 30510241 is a prime.
It is a super-2 number, since 2×305103692 = 1861765233032322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30710369) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1695012 + ... + 1695029.
It is an arithmetic number, because the mean of its divisors is an integer number (7345091).
Almost surely, 230510369 is an apocalyptic number.
It is an amenable number.
30510369 is a deficient number, since it is larger than the sum of its proper divisors (13560177).
30510369 is a wasteful number, since it uses less digits than its factorization.
30510369 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3390047 (or 3390044 counting only the distinct ones).
The product of its (nonzero) digits is 2430, while the sum is 27.
The square root of 30510369 is about 5523.6191939706. The cubic root of 30510369 is about 312.4753909154.
The spelling of 30510369 in words is "thirty million, five hundred ten thousand, three hundred sixty-nine".
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