Base | Representation |
---|---|
bin | 111010011101… |
… | …1001001000000 |
3 | 2010200020012011 |
4 | 1310323021000 |
5 | 30321312234 |
6 | 3012542304 |
7 | 521346232 |
oct | 164731100 |
9 | 63606164 |
10 | 30650944 |
11 | 16335565 |
12 | a321994 |
13 | 647236c |
14 | 40dc252 |
15 | 2a56b64 |
hex | 1d3b240 |
30650944 has 28 divisors (see below), whose sum is σ = 62311788. Its totient is φ = 14950400.
The previous prime is 30650897. The next prime is 30650947. The reversal of 30650944 is 44905603.
It can be written as a sum of positive squares in 2 ways, for example, as 7225344 + 23425600 = 2688^2 + 4840^2 .
It is a super-2 number, since 2×306509442 = 1878960736182272, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30650947) 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 3 ways as a sum of consecutive naturals, for example, 3217 + ... + 8464.
It is an arithmetic number, because the mean of its divisors is an integer number (2225421).
Almost surely, 230650944 is an apocalyptic number.
It is an amenable number.
30650944 is an abundant number, since it is smaller than the sum of its proper divisors (31660844).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30650944 is a wasteful number, since it uses less digits than its factorization.
30650944 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11734 (or 11724 counting only the distinct ones).
The product of its (nonzero) digits is 12960, while the sum is 31.
The square root of 30650944 is about 5536.3294699647. The cubic root of 30650944 is about 312.9545606648.
The spelling of 30650944 in words is "thirty million, six hundred fifty thousand, nine hundred forty-four".
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