Base | Representation |
---|---|
bin | 11101010100111… |
… | …110010010101001 |
3 | 1021021212002021022 |
4 | 131110332102221 |
5 | 2001430143124 |
6 | 120454022225 |
7 | 15123151022 |
oct | 3524762251 |
9 | 1237762238 |
10 | 492037289 |
11 | 232818997 |
12 | 118947975 |
13 | 7ac27933 |
14 | 494c1c49 |
15 | 2d2e3c5e |
hex | 1d53e4a9 |
492037289 has 2 divisors, whose sum is σ = 492037290. Its totient is φ = 492037288.
The previous prime is 492037279. The next prime is 492037291. The reversal of 492037289 is 982730294.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 430147600 + 61889689 = 20740^2 + 7867^2 .
It is a cyclic number.
It is not a de Polignac number, because 492037289 - 224 = 475260073 is a prime.
Together with 492037291, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (492037279) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246018644 + 246018645.
It is an arithmetic number, because the mean of its divisors is an integer number (246018645).
Almost surely, 2492037289 is an apocalyptic number.
It is an amenable number.
492037289 is a deficient number, since it is larger than the sum of its proper divisors (1).
492037289 is an equidigital number, since it uses as much as digits as its factorization.
492037289 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 217728, while the sum is 44.
The square root of 492037289 is about 22181.9135558680. The cubic root of 492037289 is about 789.4646209682.
The spelling of 492037289 in words is "four hundred ninety-two million, thirty-seven thousand, two hundred eighty-nine".
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