Base | Representation |
---|---|
bin | 111001101010… |
… | …1001011101000 |
3 | 2002220000022121 |
4 | 1303111023220 |
5 | 30214431240 |
6 | 3000001024 |
7 | 514656535 |
oct | 163251350 |
9 | 62800277 |
10 | 30233320 |
11 | 1607a817 |
12 | a160174 |
13 | 6357250 |
14 | 402dd8c |
15 | 29c304a |
hex | 1cd52e8 |
30233320 has 64 divisors (see below), whose sum is σ = 74707920. Its totient is φ = 10942464.
The previous prime is 30233309. The next prime is 30233363. The reversal of 30233320 is 2333203.
It is a happy number.
It can be written as a sum of positive squares in 8 ways, for example, as 7518564 + 22714756 = 2742^2 + 4766^2 .
It is a junction number, because it is equal to n+sod(n) for n = 30233294 and 30233303.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 27012 + ... + 28108.
Almost surely, 230233320 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 30233320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37353960).
30233320 is an abundant number, since it is smaller than the sum of its proper divisors (44474600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30233320 is a wasteful number, since it uses less digits than its factorization.
30233320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1174 (or 1170 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 16.
The square root of 30233320 is about 5498.4834272734. The cubic root of 30233320 is about 311.5267040377.
Adding to 30233320 its reverse (2333203), we get a palindrome (32566523).
The spelling of 30233320 in words is "thirty million, two hundred thirty-three thousand, three hundred twenty".
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