Base | Representation |
---|---|
bin | 111001010001… |
… | …0010110101111 |
3 | 2002111102202001 |
4 | 1302202112233 |
5 | 30141301020 |
6 | 2551313131 |
7 | 513131560 |
oct | 162422657 |
9 | 62442661 |
10 | 30025135 |
11 | 15a48368 |
12 | a07b7a7 |
13 | 62b356a |
14 | 3db8167 |
15 | 298150a |
hex | 1ca25af |
30025135 has 16 divisors (see below), whose sum is σ = 41702400. Its totient is φ = 20326176.
The previous prime is 30025133. The next prime is 30025147. The reversal of 30025135 is 53152003.
It is a cyclic number.
It is not a de Polignac number, because 30025135 - 21 = 30025133 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30025133) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2665 + ... + 8194.
It is an arithmetic number, because the mean of its divisors is an integer number (2606400).
Almost surely, 230025135 is an apocalyptic number.
30025135 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
30025135 is a deficient number, since it is larger than the sum of its proper divisors (11677265).
30025135 is a wasteful number, since it uses less digits than its factorization.
30025135 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10950.
The product of its (nonzero) digits is 450, while the sum is 19.
The square root of 30025135 is about 5479.5195957310. The cubic root of 30025135 is about 310.8100044704.
Adding to 30025135 its reverse (53152003), we get a palindrome (83177138).
The spelling of 30025135 in words is "thirty million, twenty-five thousand, one hundred thirty-five".
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