Base | Representation |
---|---|
bin | 111010100001… |
… | …0010110101000 |
3 | 2010201201201101 |
4 | 1311002112220 |
5 | 30323233423 |
6 | 3013331144 |
7 | 521531326 |
oct | 165022650 |
9 | 63651641 |
10 | 30680488 |
11 | 16355783 |
12 | a336ab4 |
13 | 6482947 |
14 | 4108d16 |
15 | 2a607ad |
hex | 1d425a8 |
30680488 has 8 divisors (see below), whose sum is σ = 57525930. Its totient is φ = 15340240.
The previous prime is 30680479. The next prime is 30680491. The reversal of 30680488 is 88408603.
It can be written as a sum of positive squares in only one way, i.e., 22829284 + 7851204 = 4778^2 + 2802^2 .
It is a tau number, because it is divible by the number of its divisors (8).
It is an unprimeable number.
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 as a sum of consecutive naturals, namely, 1917523 + ... + 1917538.
Almost surely, 230680488 is an apocalyptic number.
It is an amenable number.
30680488 is a deficient number, since it is larger than the sum of its proper divisors (26845442).
30680488 is a wasteful number, since it uses less digits than its factorization.
30680488 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3835067 (or 3835063 counting only the distinct ones).
The product of its (nonzero) digits is 36864, while the sum is 37.
The square root of 30680488 is about 5538.9970211221. The cubic root of 30680488 is about 313.0550791617.
The spelling of 30680488 in words is "thirty million, six hundred eighty thousand, four hundred eighty-eight".
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