Base | Representation |
---|---|
bin | 111001010001… |
… | …0110111101111 |
3 | 2002111112122021 |
4 | 1302202313233 |
5 | 30141332442 |
6 | 2551331011 |
7 | 513140665 |
oct | 162426757 |
9 | 62445567 |
10 | 30027247 |
11 | 15a49a08 |
12 | a080a67 |
13 | 62b4503 |
14 | 3db8c35 |
15 | 2981e67 |
hex | 1ca2def |
30027247 has 4 divisors (see below), whose sum is σ = 30073336. Its totient is φ = 29981160.
The previous prime is 30027227. The next prime is 30027269. The reversal of 30027247 is 74272003.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74272003 = 13 ⋅5713231.
It is a cyclic number.
It is not a de Polignac number, because 30027247 - 211 = 30025199 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 (30027227) 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, 22053 + ... + 23374.
It is an arithmetic number, because the mean of its divisors is an integer number (7518334).
Almost surely, 230027247 is an apocalyptic number.
30027247 is a deficient number, since it is larger than the sum of its proper divisors (46089).
30027247 is an equidigital number, since it uses as much as digits as its factorization.
30027247 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 46088.
The product of its (nonzero) digits is 2352, while the sum is 25.
The square root of 30027247 is about 5479.7123099666. The cubic root of 30027247 is about 310.8172918685.
The spelling of 30027247 in words is "thirty million, twenty-seven thousand, two hundred forty-seven".
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