Base | Representation |
---|---|
bin | 111001011011… |
… | …1101000111011 |
3 | 2002122212022221 |
4 | 1302313220323 |
5 | 30202043230 |
6 | 2553224511 |
7 | 513644002 |
oct | 162675073 |
9 | 62585287 |
10 | 30112315 |
11 | 15aa7912 |
12 | a102137 |
13 | 631414c |
14 | 3ddbc39 |
15 | 299c27a |
hex | 1cb7a3b |
30112315 has 16 divisors (see below), whose sum is σ = 37610496. Its totient is φ = 23119200.
The previous prime is 30112309. The next prime is 30112319. The reversal of 30112315 is 51321103.
It is not a de Polignac number, because 30112315 - 217 = 29981243 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30112319) 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, 19564 + ... + 21046.
It is an arithmetic number, because the mean of its divisors is an integer number (2350656).
Almost surely, 230112315 is an apocalyptic number.
30112315 is a deficient number, since it is larger than the sum of its proper divisors (7498181).
30112315 is a wasteful number, since it uses less digits than its factorization.
30112315 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1650.
The product of its (nonzero) digits is 90, while the sum is 16.
The square root of 30112315 is about 5487.4689065178. The cubic root of 30112315 is about 311.1105330441.
Adding to 30112315 its reverse (51321103), we get a palindrome (81433418).
The spelling of 30112315 in words is "thirty million, one hundred twelve thousand, three hundred fifteen".
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