Base | Representation |
---|---|
bin | 111001110111… |
… | …1011011000101 |
3 | 2010002110202112 |
4 | 1303233123011 |
5 | 30231401210 |
6 | 3002150405 |
7 | 515615105 |
oct | 163573305 |
9 | 63073675 |
10 | 30340805 |
11 | 16143550 |
12 | a1b2405 |
13 | 6394151 |
14 | 405b205 |
15 | 29e4d05 |
hex | 1cef6c5 |
30340805 has 8 divisors (see below), whose sum is σ = 39718944. Its totient is φ = 22066000.
The previous prime is 30340789. The next prime is 30340823. The reversal of 30340805 is 50804303.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30340805 - 24 = 30340789 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275771 + ... + 275880.
It is an arithmetic number, because the mean of its divisors is an integer number (4964868).
Almost surely, 230340805 is an apocalyptic number.
It is an amenable number.
30340805 is a deficient number, since it is larger than the sum of its proper divisors (9378139).
30340805 is a wasteful number, since it uses less digits than its factorization.
30340805 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 551667.
The product of its (nonzero) digits is 1440, while the sum is 23.
The square root of 30340805 is about 5508.2488142785. The cubic root of 30340805 is about 311.8954455989.
The spelling of 30340805 in words is "thirty million, three hundred forty thousand, eight hundred five".
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