Base | Representation |
---|---|
bin | 111010000000… |
… | …1100100010101 |
3 | 2010020020201010 |
4 | 1310001210111 |
5 | 30241241000 |
6 | 3003522433 |
7 | 516344556 |
oct | 164014425 |
9 | 63206633 |
10 | 30415125 |
11 | 16194374 |
12 | a229419 |
13 | 63bbc20 |
14 | 407a32d |
15 | 2a0bd50 |
hex | 1d01915 |
30415125 has 64 divisors (see below), whose sum is σ = 57867264. Its totient is φ = 14054400.
The previous prime is 30415117. The next prime is 30415141. The reversal of 30415125 is 52151403.
It is not a de Polignac number, because 30415125 - 23 = 30415117 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 82692 + ... + 83058.
It is an arithmetic number, because the mean of its divisors is an integer number (904176).
Almost surely, 230415125 is an apocalyptic number.
It is an amenable number.
30415125 is a deficient number, since it is larger than the sum of its proper divisors (27452139).
30415125 is a wasteful number, since it uses less digits than its factorization.
30415125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 415 (or 405 counting only the distinct ones).
The product of its (nonzero) digits is 600, while the sum is 21.
The square root of 30415125 is about 5514.9909338094. The cubic root of 30415125 is about 312.1499012586.
Adding to 30415125 its reverse (52151403), we get a palindrome (82566528).
The spelling of 30415125 in words is "thirty million, four hundred fifteen thousand, one hundred twenty-five".
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