Base | Representation |
---|---|
bin | 111010101110… |
… | …1001010000010 |
3 | 2010221022022112 |
4 | 1311131022002 |
5 | 30340242044 |
6 | 3015535322 |
7 | 522466364 |
oct | 165351202 |
9 | 63838275 |
10 | 30790274 |
11 | 16420209 |
12 | a38a542 |
13 | 64c08c8 |
14 | 4136d34 |
15 | 2a8309e |
hex | 1d5d282 |
30790274 has 8 divisors (see below), whose sum is σ = 46228368. Its totient is φ = 15380820.
The previous prime is 30790273. The next prime is 30790289. The reversal of 30790274 is 47209703.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 30790274.
It is not an unprimeable number, because it can be changed into a prime (30790273) 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, 4232 + ... + 8915.
It is an arithmetic number, because the mean of its divisors is an integer number (5778546).
Almost surely, 230790274 is an apocalyptic number.
30790274 is a deficient number, since it is larger than the sum of its proper divisors (15438094).
30790274 is a wasteful number, since it uses less digits than its factorization.
30790274 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14320.
The product of its (nonzero) digits is 10584, while the sum is 32.
The square root of 30790274 is about 5548.8984492420. The cubic root of 30790274 is about 313.4280431467.
Adding to 30790274 its reverse (47209703), we get a palindrome (77999977).
The spelling of 30790274 in words is "thirty million, seven hundred ninety thousand, two hundred seventy-four".
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