Base | Representation |
---|---|
bin | 111001111110… |
… | …0110011100110 |
3 | 2010012020221210 |
4 | 1303330303212 |
5 | 30240124442 |
6 | 3003252250 |
7 | 516233655 |
oct | 163746346 |
9 | 63166853 |
10 | 30395622 |
11 | 16180754 |
12 | a21a086 |
13 | 63b309a |
14 | 407319c |
15 | 2a0619c |
hex | 1cfcce6 |
30395622 has 16 divisors (see below), whose sum is σ = 61699392. Its totient is φ = 9980520.
The previous prime is 30395621. The next prime is 30395633. The reversal of 30395622 is 22659303.
It is a self number, because there is not a number n which added to its sum of digits gives 30395622.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30395621) 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, 37404 + ... + 38207.
It is an arithmetic number, because the mean of its divisors is an integer number (3856212).
Almost surely, 230395622 is an apocalyptic number.
30395622 is an abundant number, since it is smaller than the sum of its proper divisors (31303770).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30395622 is a wasteful number, since it uses less digits than its factorization.
30395622 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 75683.
The product of its (nonzero) digits is 9720, while the sum is 30.
The square root of 30395622 is about 5513.2224696633. Note that the first 3 decimals coincide. The cubic root of 30395622 is about 312.0831673423.
The spelling of 30395622 in words is "thirty million, three hundred ninety-five thousand, six hundred twenty-two".
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