Base | Representation |
---|---|
bin | 1000010000101… |
… | …11001011111101 |
3 | 11211101212002022 |
4 | 10020113023331 |
5 | 120220112424 |
6 | 10513205525 |
7 | 1501022462 |
oct | 410271375 |
9 | 154355068 |
10 | 69300989 |
11 | 3613394a |
12 | 1b2608a5 |
13 | 11485604 |
14 | 92bd669 |
15 | 613d95e |
hex | 42172fd |
69300989 has 2 divisors, whose sum is σ = 69300990. Its totient is φ = 69300988.
The previous prime is 69300967. The next prime is 69300991. The reversal of 69300989 is 98900396.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 62884900 + 6416089 = 7930^2 + 2533^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-69300989 is a prime.
Together with 69300991, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (69300929) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34650494 + 34650495.
It is an arithmetic number, because the mean of its divisors is an integer number (34650495).
Almost surely, 269300989 is an apocalyptic number.
It is an amenable number.
69300989 is a deficient number, since it is larger than the sum of its proper divisors (1).
69300989 is an equidigital number, since it uses as much as digits as its factorization.
69300989 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 104976, while the sum is 44.
The square root of 69300989 is about 8324.7215569051. The cubic root of 69300989 is about 410.7521173656.
The spelling of 69300989 in words is "sixty-nine million, three hundred thousand, nine hundred eighty-nine".
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