Base | Representation |
---|---|
bin | 111010101100… |
… | …1010000010001 |
3 | 2010220111101111 |
4 | 1311121100101 |
5 | 30334234124 |
6 | 3015333321 |
7 | 522401650 |
oct | 165312021 |
9 | 63814344 |
10 | 30774289 |
11 | 1640a1a7 |
12 | a381241 |
13 | 64b6550 |
14 | 4131197 |
15 | 2a7d494 |
hex | 1d59411 |
30774289 has 16 divisors (see below), whose sum is σ = 39101440. Its totient is φ = 23561280.
The previous prime is 30774257. The next prime is 30774329. The reversal of 30774289 is 98247703.
It is a cyclic number.
It is not a de Polignac number, because 30774289 - 25 = 30774257 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30774209) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2634 + ... + 8275.
It is an arithmetic number, because the mean of its divisors is an integer number (2443840).
Almost surely, 230774289 is an apocalyptic number.
It is an amenable number.
30774289 is a deficient number, since it is larger than the sum of its proper divisors (8327151).
30774289 is a wasteful number, since it uses less digits than its factorization.
30774289 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10960.
The product of its (nonzero) digits is 84672, while the sum is 40.
The square root of 30774289 is about 5547.4578862755. The cubic root of 30774289 is about 313.3737942569.
The spelling of 30774289 in words is "thirty million, seven hundred seventy-four thousand, two hundred eighty-nine".
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