Base | Representation |
---|---|
bin | 100100001011111… |
… | …1001011101110111 |
3 | 10010121202222112102 |
4 | 1020113321131313 |
5 | 4441320133442 |
6 | 320253012315 |
7 | 42042510245 |
oct | 11027713567 |
9 | 3117688472 |
10 | 1214224247 |
11 | 573441715 |
12 | 29a78409b |
13 | 1647349b2 |
14 | b7393795 |
15 | 718ea232 |
hex | 485f9777 |
1214224247 has 2 divisors, whose sum is σ = 1214224248. Its totient is φ = 1214224246.
The previous prime is 1214224177. The next prime is 1214224259. The reversal of 1214224247 is 7424224121.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 1214224247 - 216 = 1214158711 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1214224147) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607112123 + 607112124.
It is an arithmetic number, because the mean of its divisors is an integer number (607112124).
Almost surely, 21214224247 is an apocalyptic number.
1214224247 is a deficient number, since it is larger than the sum of its proper divisors (1).
1214224247 is an equidigital number, since it uses as much as digits as its factorization.
1214224247 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 7168, while the sum is 29.
The square root of 1214224247 is about 34845.7206411347. The cubic root of 1214224247 is about 1066.8408425317.
Adding to 1214224247 its reverse (7424224121), we get a palindrome (8638448368).
The spelling of 1214224247 in words is "one billion, two hundred fourteen million, two hundred twenty-four thousand, two hundred forty-seven".
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