Base | Representation |
---|---|
bin | 100100101011111… |
… | …1100101000100111 |
3 | 10011210101000100101 |
4 | 1021113330220213 |
5 | 10010114430224 |
6 | 322052524531 |
7 | 42335310244 |
oct | 11127745047 |
9 | 3153330311 |
10 | 1231014439 |
11 | 58196a406 |
12 | 2a4320747 |
13 | 168063115 |
14 | b96c45cb |
15 | 73115044 |
hex | 495fca27 |
1231014439 has 2 divisors, whose sum is σ = 1231014440. Its totient is φ = 1231014438.
The previous prime is 1231014377. The next prime is 1231014451. The reversal of 1231014439 is 9344101321.
It is a strong prime.
It is an emirp because it is prime and its reverse (9344101321) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1231014439 - 27 = 1231014311 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1231014539) 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, 615507219 + 615507220.
It is an arithmetic number, because the mean of its divisors is an integer number (615507220).
Almost surely, 21231014439 is an apocalyptic number.
1231014439 is a deficient number, since it is larger than the sum of its proper divisors (1).
1231014439 is an equidigital number, since it uses as much as digits as its factorization.
1231014439 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2592, while the sum is 28.
The square root of 1231014439 is about 35085.8153532165. The cubic root of 1231014439 is about 1071.7357447959.
The spelling of 1231014439 in words is "one billion, two hundred thirty-one million, fourteen thousand, four hundred thirty-nine".
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