Base | Representation |
---|---|
bin | 111010100000… |
… | …0111110000011 |
3 | 2010201102221102 |
4 | 1311000332003 |
5 | 30323043234 |
6 | 3013245015 |
7 | 521505650 |
oct | 165007603 |
9 | 63642842 |
10 | 30674819 |
11 | 1635149a |
12 | a33376b |
13 | 64801a6 |
14 | 4106c27 |
15 | 2a5dc7e |
hex | 1d40f83 |
30674819 has 8 divisors (see below), whose sum is σ = 35537760. Its totient is φ = 25932096.
The previous prime is 30674789. The next prime is 30674821. The reversal of 30674819 is 91847603.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30674819 - 28 = 30674563 is a prime.
It is a super-2 number, since 2×306748192 = 1881889041365522, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30674419) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29504 + ... + 30525.
It is an arithmetic number, because the mean of its divisors is an integer number (4442220).
Almost surely, 230674819 is an apocalyptic number.
30674819 is a deficient number, since it is larger than the sum of its proper divisors (4862941).
30674819 is an equidigital number, since it uses as much as digits as its factorization.
30674819 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 60109.
The product of its (nonzero) digits is 36288, while the sum is 38.
The square root of 30674819 is about 5538.4852622355. The cubic root of 30674819 is about 313.0357963463.
The spelling of 30674819 in words is "thirty million, six hundred seventy-four thousand, eight hundred nineteen".
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