Base | Representation |
---|---|
bin | 111001111011… |
… | …0011010100111 |
3 | 2010010221001100 |
4 | 1303312122213 |
5 | 30233310242 |
6 | 3002531143 |
7 | 516064443 |
oct | 163663247 |
9 | 63127040 |
10 | 30369447 |
11 | 16163019 |
12 | a206ab3 |
13 | 63a41b4 |
14 | 4067823 |
15 | 29ed54c |
hex | 1cf66a7 |
30369447 has 18 divisors (see below), whose sum is σ = 44538936. Its totient is φ = 19938960.
The previous prime is 30369431. The next prime is 30369457. The reversal of 30369447 is 74496303.
It is not a de Polignac number, because 30369447 - 24 = 30369431 is a prime.
It is a super-2 number, since 2×303694472 = 1844606622171618, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30369457) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 167697 + ... + 167877.
Almost surely, 230369447 is an apocalyptic number.
30369447 is a deficient number, since it is larger than the sum of its proper divisors (14169489).
30369447 is a wasteful number, since it uses less digits than its factorization.
30369447 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 471 (or 287 counting only the distinct ones).
The product of its (nonzero) digits is 54432, while the sum is 36.
The square root of 30369447 is about 5510.8481198451. The cubic root of 30369447 is about 311.9935587921.
The spelling of 30369447 in words is "thirty million, three hundred sixty-nine thousand, four hundred forty-seven".
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