Base | Representation |
---|---|
bin | 101110111011… |
… | …010111011101 |
3 | 212010222212211 |
4 | 232323113131 |
5 | 11122124124 |
6 | 1115400421 |
7 | 206364163 |
oct | 56732735 |
9 | 25128784 |
10 | 12301789 |
11 | 6a42575 |
12 | 4153111 |
13 | 2719486 |
14 | 18c3233 |
15 | 112ee94 |
hex | bbb5dd |
12301789 has 2 divisors, whose sum is σ = 12301790. Its totient is φ = 12301788.
The previous prime is 12301787. The next prime is 12301837. The reversal of 12301789 is 98710321.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 9211225 + 3090564 = 3035^2 + 1758^2 .
It is a cyclic number.
It is not a de Polignac number, because 12301789 - 21 = 12301787 is a prime.
Together with 12301787, it forms a pair of twin primes.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12301789.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12301781) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6150894 + 6150895.
It is an arithmetic number, because the mean of its divisors is an integer number (6150895).
Almost surely, 212301789 is an apocalyptic number.
It is an amenable number.
12301789 is a deficient number, since it is larger than the sum of its proper divisors (1).
12301789 is an equidigital number, since it uses as much as digits as its factorization.
12301789 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3024, while the sum is 31.
The square root of 12301789 is about 3507.3906255221. The cubic root of 12301789 is about 230.8462148653.
The spelling of 12301789 in words is "twelve million, three hundred one thousand, seven hundred eighty-nine".
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