Base | Representation |
---|---|
bin | 111010011111… |
… | …0011110011111 |
3 | 2010200220221012 |
4 | 1310332132133 |
5 | 30322231412 |
6 | 3013125435 |
7 | 521434121 |
oct | 164763637 |
9 | 63626835 |
10 | 30664607 |
11 | 16344856 |
12 | a32987b |
13 | 647864c |
14 | 4103211 |
15 | 2a5ac22 |
hex | 1d3e79f |
30664607 has 4 divisors (see below), whose sum is σ = 30716400. Its totient is φ = 30612816.
The previous prime is 30664603. The next prime is 30664609. The reversal of 30664607 is 70646603.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70646603 = 7369 ⋅9587.
It is a cyclic number.
It is not a de Polignac number, because 30664607 - 22 = 30664603 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30664603) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24998 + ... + 26195.
It is an arithmetic number, because the mean of its divisors is an integer number (7679100).
Almost surely, 230664607 is an apocalyptic number.
30664607 is a deficient number, since it is larger than the sum of its proper divisors (51793).
30664607 is an equidigital number, since it uses as much as digits as its factorization.
30664607 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51792.
The product of its (nonzero) digits is 18144, while the sum is 32.
The square root of 30664607 is about 5537.5632727762. The cubic root of 30664607 is about 313.0010547519.
The spelling of 30664607 in words is "thirty million, six hundred sixty-four thousand, six hundred seven".
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