Base | Representation |
---|---|
bin | 111001101010… |
… | …0011000010000 |
3 | 2002212211210211 |
4 | 1303110120100 |
5 | 30214330112 |
6 | 2555533504 |
7 | 514644130 |
oct | 163243020 |
9 | 62784724 |
10 | 30230032 |
11 | 160782a8 |
12 | a15a294 |
13 | 63558c1 |
14 | 402cac0 |
15 | 29c20a7 |
hex | 1cd4610 |
30230032 has 40 divisors (see below), whose sum is σ = 68505536. Its totient is φ = 12652416.
The previous prime is 30230023. The next prime is 30230033. The reversal of 30230032 is 23003203.
It is a junction number, because it is equal to n+sod(n) for n = 30229994 and 30230021.
It is not an unprimeable number, because it can be changed into a prime (30230033) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1678 + ... + 7954.
Almost surely, 230230032 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30230032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34252768).
30230032 is an abundant number, since it is smaller than the sum of its proper divisors (38275504).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30230032 is a wasteful number, since it uses less digits than its factorization.
30230032 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6335 (or 6329 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 13.
The square root of 30230032 is about 5498.1844276088. The cubic root of 30230032 is about 311.5154103509.
Adding to 30230032 its reverse (23003203), we get a palindrome (53233235).
The spelling of 30230032 in words is "thirty million, two hundred thirty thousand, thirty-two".
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