Base | Representation |
---|---|
bin | 111010111010… |
… | …0010101011110 |
3 | 2011010010112211 |
4 | 1311310111132 |
5 | 30401311324 |
6 | 3021551034 |
7 | 523343233 |
oct | 165642536 |
9 | 64103484 |
10 | 30885214 |
11 | 16485578 |
12 | a41547a |
13 | 6524b99 |
14 | 415d78a |
15 | 2aa1294 |
hex | 1d7455e |
30885214 has 4 divisors (see below), whose sum is σ = 46327824. Its totient is φ = 15442606.
The previous prime is 30885187. The next prime is 30885221. The reversal of 30885214 is 41258803.
It is a semiprime because it is the product of two primes.
It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7721302 + ... + 7721305.
It is an arithmetic number, because the mean of its divisors is an integer number (11581956).
Almost surely, 230885214 is an apocalyptic number.
30885214 is a deficient number, since it is larger than the sum of its proper divisors (15442610).
30885214 is a wasteful number, since it uses less digits than its factorization.
30885214 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15442609.
The product of its (nonzero) digits is 7680, while the sum is 31.
The square root of 30885214 is about 5557.4467158939. The cubic root of 30885214 is about 313.7498582562.
The spelling of 30885214 in words is "thirty million, eight hundred eighty-five thousand, two hundred fourteen".
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