Base | Representation |
---|---|
bin | 111010011000… |
… | …1111000110101 |
3 | 2010121022012111 |
4 | 1310301320311 |
5 | 30314104140 |
6 | 3012051021 |
7 | 521130601 |
oct | 164617065 |
9 | 63538174 |
10 | 30613045 |
11 | 1630a041 |
12 | a303a71 |
13 | 645b038 |
14 | 40cc501 |
15 | 2a4a7ea |
hex | 1d31e35 |
30613045 has 4 divisors (see below), whose sum is σ = 36735660. Its totient is φ = 24490432.
The previous prime is 30613043. The next prime is 30613049. The reversal of 30613045 is 54031603.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 13498276 + 17114769 = 3674^2 + 4137^2 .
It is a cyclic number.
It is not a de Polignac number, because 30613045 - 21 = 30613043 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30613043) 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, 3061300 + ... + 3061309.
It is an arithmetic number, because the mean of its divisors is an integer number (9183915).
Almost surely, 230613045 is an apocalyptic number.
It is an amenable number.
30613045 is a deficient number, since it is larger than the sum of its proper divisors (6122615).
30613045 is an equidigital number, since it uses as much as digits as its factorization.
30613045 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6122614.
The product of its (nonzero) digits is 1080, while the sum is 22.
The square root of 30613045 is about 5532.9056561630. The cubic root of 30613045 is about 312.8255210642.
Adding to 30613045 its reverse (54031603), we get a palindrome (84644648).
The spelling of 30613045 in words is "thirty million, six hundred thirteen thousand, forty-five".
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