Base | Representation |
---|---|
bin | 111010110101… |
… | …0110001001111 |
3 | 2011001010210121 |
4 | 1311222301033 |
5 | 30344033111 |
6 | 3021045411 |
7 | 523121056 |
oct | 165526117 |
9 | 64033717 |
10 | 30846031 |
11 | 16459097 |
12 | a3b6867 |
13 | 65100b8 |
14 | 414d39d |
15 | 2a94871 |
hex | 1d6ac4f |
30846031 has 4 divisors (see below), whose sum is σ = 30862512. Its totient is φ = 30829552.
The previous prime is 30845999. The next prime is 30846061. The reversal of 30846031 is 13064803.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 30846031 - 25 = 30845999 is a prime.
It is a super-2 number, since 2×308460312 = 1902955256905922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30845987 and 30846005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30846061) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5011 + ... + 9316.
It is an arithmetic number, because the mean of its divisors is an integer number (7715628).
Almost surely, 230846031 is an apocalyptic number.
30846031 is a deficient number, since it is larger than the sum of its proper divisors (16481).
30846031 is a wasteful number, since it uses less digits than its factorization.
30846031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16480.
The product of its (nonzero) digits is 1728, while the sum is 25.
The square root of 30846031 is about 5553.9203271203. The cubic root of 30846031 is about 313.6171209188.
The spelling of 30846031 in words is "thirty million, eight hundred forty-six thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •