Base | Representation |
---|---|
bin | 111001101100… |
… | …1011001110100 |
3 | 2002220220001001 |
4 | 1303121121310 |
5 | 30221004422 |
6 | 3000213044 |
7 | 515061130 |
oct | 163313164 |
9 | 62826031 |
10 | 30250612 |
11 | 16091807 |
12 | a16a184 |
13 | 6362092 |
14 | 40363c0 |
15 | 29c8227 |
hex | 1cd9674 |
30250612 has 48 divisors (see below), whose sum is σ = 63866880. Its totient is φ = 12256992.
The previous prime is 30250573. The next prime is 30250621. The reversal of 30250612 is 21605203.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 30250612.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68689 + ... + 69127.
It is an arithmetic number, because the mean of its divisors is an integer number (1330560).
Almost surely, 230250612 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 30250612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31933440).
30250612 is an abundant number, since it is smaller than the sum of its proper divisors (33616268).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30250612 is a wasteful number, since it uses less digits than its factorization.
30250612 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 580 (or 578 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 19.
The square root of 30250612 is about 5500.0556360822. The cubic root of 30250612 is about 311.5860854649.
Adding to 30250612 its reverse (21605203), we get a palindrome (51855815).
The spelling of 30250612 in words is "thirty million, two hundred fifty thousand, six hundred twelve".
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