Base | Representation |
---|---|
bin | 111001101000… |
… | …0100100100111 |
3 | 2002212001102022 |
4 | 1303100210213 |
5 | 30213330224 |
6 | 2555333355 |
7 | 514550513 |
oct | 163204447 |
9 | 62761368 |
10 | 30214439 |
11 | 16067612 |
12 | a15125b |
13 | 634b788 |
14 | 4027143 |
15 | 29bc65e |
hex | 1cd0927 |
30214439 has 2 divisors, whose sum is σ = 30214440. Its totient is φ = 30214438.
The previous prime is 30214397. The next prime is 30214441. The reversal of 30214439 is 93441203.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30214439 - 28 = 30214183 is a prime.
Together with 30214441, it forms a pair of twin primes.
It is a Chen prime.
It is equal to p1870361 and since 30214439 and 1870361 have the same sum of digits, it is a Honaker prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30214139) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15107219 + 15107220.
It is an arithmetic number, because the mean of its divisors is an integer number (15107220).
Almost surely, 230214439 is an apocalyptic number.
30214439 is a deficient number, since it is larger than the sum of its proper divisors (1).
30214439 is an equidigital number, since it uses as much as digits as its factorization.
30214439 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2592, while the sum is 26.
The square root of 30214439 is about 5496.7662311581. The cubic root of 30214439 is about 311.4618400558.
It can be divided in two parts, 302 and 14439, that added together give a palindrome (14741).
The spelling of 30214439 in words is "thirty million, two hundred fourteen thousand, four hundred thirty-nine".
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