Base | Representation |
---|---|
bin | 111010011011… |
… | …1000011010011 |
3 | 2010122101012211 |
4 | 1310313003103 |
5 | 30320243240 |
6 | 3012332551 |
7 | 521246344 |
oct | 164670323 |
9 | 63571184 |
10 | 30634195 |
11 | 16323a19 |
12 | a314157 |
13 | 6467857 |
14 | 40d60cb |
15 | 2a51bea |
hex | 1d370d3 |
30634195 has 4 divisors (see below), whose sum is σ = 36761040. Its totient is φ = 24507352.
The previous prime is 30634193. The next prime is 30634199. The reversal of 30634195 is 59143603.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59143603 = 23 ⋅2571461.
It is a cyclic number.
It is not a de Polignac number, because 30634195 - 21 = 30634193 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30634193) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3063415 + ... + 3063424.
It is an arithmetic number, because the mean of its divisors is an integer number (9190260).
Almost surely, 230634195 is an apocalyptic number.
30634195 is a deficient number, since it is larger than the sum of its proper divisors (6126845).
30634195 is an equidigital number, since it uses as much as digits as its factorization.
30634195 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6126844.
The product of its (nonzero) digits is 9720, while the sum is 31.
The square root of 30634195 is about 5534.8166184617. The cubic root of 30634195 is about 312.8975463144.
Adding to 30634195 its reverse (59143603), we get a palindrome (89777798).
The spelling of 30634195 in words is "thirty million, six hundred thirty-four thousand, one hundred ninety-five".
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