Base | Representation |
---|---|
bin | 111001011101… |
… | …1111111001101 |
3 | 2002200202202120 |
4 | 1302323333031 |
5 | 30203131000 |
6 | 2553443153 |
7 | 514046634 |
oct | 162737715 |
9 | 62622676 |
10 | 30130125 |
11 | 1600a233 |
12 | a1104b9 |
13 | 631c29c |
14 | 400451b |
15 | 29a26a0 |
hex | 1cbbfcd |
30130125 has 16 divisors (see below), whose sum is σ = 50137152. Its totient is φ = 16069200.
The previous prime is 30130117. The next prime is 30130151. The reversal of 30130125 is 52103103.
It is a happy number.
It is not a de Polignac number, because 30130125 - 23 = 30130117 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
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, 39799 + ... + 40548.
It is an arithmetic number, because the mean of its divisors is an integer number (3133572).
Almost surely, 230130125 is an apocalyptic number.
It is an amenable number.
30130125 is a deficient number, since it is larger than the sum of its proper divisors (20007027).
30130125 is an equidigital number, since it uses as much as digits as its factorization.
30130125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 80365 (or 80355 counting only the distinct ones).
The product of its (nonzero) digits is 90, while the sum is 15.
The square root of 30130125 is about 5489.0914548767. The cubic root of 30130125 is about 311.1718566428.
Adding to 30130125 its reverse (52103103), we get a palindrome (82233228).
The spelling of 30130125 in words is "thirty million, one hundred thirty thousand, one hundred twenty-five".
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