Base | Representation |
---|---|
bin | 111001001110… |
… | …0100001100010 |
3 | 2002110012222102 |
4 | 1302130201202 |
5 | 30140020000 |
6 | 2551010402 |
7 | 513002126 |
oct | 162344142 |
9 | 62405872 |
10 | 30001250 |
11 | 15a31424 |
12 | a069a02 |
13 | 62a5726 |
14 | 3dad586 |
15 | 29793d5 |
hex | 1c9c862 |
30001250 has 20 divisors (see below), whose sum is σ = 56236686. Its totient is φ = 12000000.
The previous prime is 30001249. The next prime is 30001253. The reversal of 30001250 is 5210003.
It can be written as a sum of positive squares in 5 ways, for example, as 3721 + 29997529 = 61^2 + 5477^2 .
It is not an unprimeable number, because it can be changed into a prime (30001253) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10751 + ... + 13250.
Almost surely, 230001250 is an apocalyptic number.
30001250 is a deficient number, since it is larger than the sum of its proper divisors (26235436).
30001250 is an equidigital number, since it uses as much as digits as its factorization.
30001250 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24023 (or 24008 counting only the distinct ones).
The product of its (nonzero) digits is 30, while the sum is 11.
The square root of 30001250 is about 5477.3396827292. The cubic root of 30001250 is about 310.7275661362.
Adding to 30001250 its reverse (5210003), we get a palindrome (35211253).
The spelling of 30001250 in words is "thirty million, one thousand, two hundred fifty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •