Base | Representation |
---|---|
bin | 111010101110… |
… | …0000011011010 |
3 | 2010221002010010 |
4 | 1311130003122 |
5 | 30340121004 |
6 | 3015502350 |
7 | 522450246 |
oct | 165340332 |
9 | 63832103 |
10 | 30785754 |
11 | 1641787a |
12 | a3879b6 |
13 | 64bb82c |
14 | 4135426 |
15 | 2a81a89 |
hex | 1d5c0da |
30785754 has 8 divisors (see below), whose sum is σ = 61571520. Its totient is φ = 10261916.
The previous prime is 30785749. The next prime is 30785767. The reversal of 30785754 is 45758703.
It is a sphenic number, since it is the product of 3 distinct primes.
30785754 is an admirable number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2565474 + ... + 2565485.
It is an arithmetic number, because the mean of its divisors is an integer number (7696440).
Almost surely, 230785754 is an apocalyptic number.
30785754 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30785754 is a wasteful number, since it uses less digits than its factorization.
30785754 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5130964.
The product of its (nonzero) digits is 117600, while the sum is 39.
The square root of 30785754 is about 5548.4911462487. The cubic root of 30785754 is about 313.4127053587.
The spelling of 30785754 in words is "thirty million, seven hundred eighty-five thousand, seven hundred fifty-four".
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