Base | Representation |
---|---|
bin | 111001101110… |
… | …0001111000101 |
3 | 2002221110221201 |
4 | 1303130033011 |
5 | 30221342323 |
6 | 3000342501 |
7 | 515140012 |
oct | 163341705 |
9 | 62843851 |
10 | 30262213 |
11 | 1609a4a3 |
12 | a174a31 |
13 | 6367447 |
14 | 403a709 |
15 | 29cb8ad |
hex | 1cdc3c5 |
30262213 has 2 divisors, whose sum is σ = 30262214. Its totient is φ = 30262212.
The previous prime is 30262201. The next prime is 30262229. The reversal of 30262213 is 31226203.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 26193924 + 4068289 = 5118^2 + 2017^2 .
It is a cyclic number.
It is not a de Polignac number, because 30262213 - 29 = 30261701 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30202213) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15131106 + 15131107.
It is an arithmetic number, because the mean of its divisors is an integer number (15131107).
Almost surely, 230262213 is an apocalyptic number.
It is an amenable number.
30262213 is a deficient number, since it is larger than the sum of its proper divisors (1).
30262213 is an equidigital number, since it uses as much as digits as its factorization.
30262213 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 432, while the sum is 19.
The square root of 30262213 is about 5501.1101606858. The cubic root of 30262213 is about 311.6259110856.
Adding to 30262213 its reverse (31226203), we get a palindrome (61488416).
The spelling of 30262213 in words is "thirty million, two hundred sixty-two thousand, two hundred thirteen".
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