Base | Representation |
---|---|
bin | 111001101100… |
… | …0100010011011 |
3 | 2002220201011202 |
4 | 1303120202123 |
5 | 30220401232 |
6 | 3000144415 |
7 | 515044604 |
oct | 163304233 |
9 | 62821152 |
10 | 30247067 |
11 | 1608a084 |
12 | a16810b |
13 | 6360596 |
14 | 4034dab |
15 | 29c7162 |
hex | 1cd889b |
30247067 has 4 divisors (see below), whose sum is σ = 30268896. Its totient is φ = 30225240.
The previous prime is 30247057. The next prime is 30247127. The reversal of 30247067 is 76074203.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76074203 = 433 ⋅175691.
It is a cyclic number.
It is not a de Polignac number, because 30247067 - 224 = 13469851 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30247027) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 8684 + ... + 11657.
It is an arithmetic number, because the mean of its divisors is an integer number (7567224).
Almost surely, 230247067 is an apocalyptic number.
30247067 is a deficient number, since it is larger than the sum of its proper divisors (21829).
30247067 is a wasteful number, since it uses less digits than its factorization.
30247067 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21828.
The product of its (nonzero) digits is 7056, while the sum is 29.
The square root of 30247067 is about 5499.7333571729. The cubic root of 30247067 is about 311.5739136360.
The spelling of 30247067 in words is "thirty million, two hundred forty-seven thousand, sixty-seven".
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