Base | Representation |
---|---|
bin | 111001101100… |
… | …0001000110001 |
3 | 2002220121220221 |
4 | 1303120020301 |
5 | 30220323200 |
6 | 3000133041 |
7 | 515040040 |
oct | 163301061 |
9 | 62817827 |
10 | 30245425 |
11 | 16088921 |
12 | a167181 |
13 | 635c902 |
14 | 4034557 |
15 | 29c691a |
hex | 1cd8231 |
30245425 has 24 divisors (see below), whose sum is σ = 43068672. Its totient is φ = 20640000.
The previous prime is 30245419. The next prime is 30245441. The reversal of 30245425 is 52454203.
It is not a de Polignac number, because 30245425 - 219 = 29721137 is a prime.
It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30245425.
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 69960 + ... + 70390.
It is an arithmetic number, because the mean of its divisors is an integer number (1794528).
Almost surely, 230245425 is an apocalyptic number.
30245425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30245425 is a deficient number, since it is larger than the sum of its proper divisors (12823247).
30245425 is a wasteful number, since it uses less digits than its factorization.
30245425 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 849 (or 844 counting only the distinct ones).
The product of its (nonzero) digits is 4800, while the sum is 25.
The square root of 30245425 is about 5499.5840751824. The cubic root of 30245425 is about 311.5682754736.
Adding to 30245425 its reverse (52454203), we get a palindrome (82699628).
The spelling of 30245425 in words is "thirty million, two hundred forty-five thousand, four hundred twenty-five".
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