Base | Representation |
---|---|
bin | 111010100000… |
… | …0010110111011 |
3 | 2010201022111200 |
4 | 1311000112323 |
5 | 30323003230 |
6 | 3013225243 |
7 | 521465442 |
oct | 165002673 |
9 | 63638450 |
10 | 30672315 |
11 | 1634a623 |
12 | a332223 |
13 | 647bccb |
14 | 4105d59 |
15 | 2a5d160 |
hex | 1d405bb |
30672315 has 12 divisors (see below), whose sum is σ = 53165424. Its totient is φ = 16358544.
The previous prime is 30672307. The next prime is 30672347. The reversal of 30672315 is 51327603.
It is a happy number.
It is not a de Polignac number, because 30672315 - 23 = 30672307 is a prime.
It is an unprimeable number.
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 in 11 ways as a sum of consecutive naturals, for example, 340759 + ... + 340848.
It is an arithmetic number, because the mean of its divisors is an integer number (4430452).
Almost surely, 230672315 is an apocalyptic number.
30672315 is a deficient number, since it is larger than the sum of its proper divisors (22493109).
30672315 is a wasteful number, since it uses less digits than its factorization.
30672315 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 681618 (or 681615 counting only the distinct ones).
The product of its (nonzero) digits is 3780, while the sum is 27.
The square root of 30672315 is about 5538.2592030348. The cubic root of 30672315 is about 313.0272783611.
Adding to 30672315 its reverse (51327603), we get a palindrome (81999918).
The spelling of 30672315 in words is "thirty million, six hundred seventy-two thousand, three hundred fifteen".
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