Base | Representation |
---|---|
bin | 111001010000… |
… | …1111001100111 |
3 | 2002111100012000 |
4 | 1302201321213 |
5 | 30141221041 |
6 | 2551300343 |
7 | 513123255 |
oct | 162417147 |
9 | 62440160 |
10 | 30023271 |
11 | 15a46a23 |
12 | a07a6b3 |
13 | 62b2765 |
14 | 3db75d5 |
15 | 2980bb6 |
hex | 1ca1e67 |
30023271 has 32 divisors (see below), whose sum is σ = 46310400. Its totient is φ = 19209600.
The previous prime is 30023261. The next prime is 30023293. The reversal of 30023271 is 17232003.
It is not a de Polignac number, because 30023271 - 215 = 29990503 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30023251) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74671 + ... + 75071.
It is an arithmetic number, because the mean of its divisors is an integer number (1447200).
Almost surely, 230023271 is an apocalyptic number.
30023271 is a deficient number, since it is larger than the sum of its proper divisors (16287129).
30023271 is a wasteful number, since it uses less digits than its factorization.
30023271 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 516 (or 510 counting only the distinct ones).
The product of its (nonzero) digits is 252, while the sum is 18.
The square root of 30023271 is about 5479.3495051876. The cubic root of 30023271 is about 310.8035725056.
Adding to 30023271 its reverse (17232003), we get a palindrome (47255274).
The spelling of 30023271 in words is "thirty million, twenty-three thousand, two hundred seventy-one".
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