Base | Representation |
---|---|
bin | 101000011111111… |
… | …1111111110111111 |
3 | 10111201010001000121 |
4 | 1100333333332333 |
5 | 10240343020211 |
6 | 342503035411 |
7 | 45450631162 |
oct | 12077777677 |
9 | 3451101017 |
10 | 1358954431 |
11 | 63810463a |
12 | 31b13bb67 |
13 | 18870a063 |
14 | cc6a9ad9 |
15 | 7e488271 |
hex | 50ffffbf |
1358954431 has 2 divisors, whose sum is σ = 1358954432. Its totient is φ = 1358954430.
The previous prime is 1358954419. The next prime is 1358954437. The reversal of 1358954431 is 1344598531.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1358954431 is a prime.
It is a super-2 number, since 2×13589544312 = 3693514291069067522, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1358954437) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 679477215 + 679477216.
It is an arithmetic number, because the mean of its divisors is an integer number (679477216).
Almost surely, 21358954431 is an apocalyptic number.
1358954431 is a deficient number, since it is larger than the sum of its proper divisors (1).
1358954431 is an equidigital number, since it uses as much as digits as its factorization.
1358954431 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 259200, while the sum is 43.
The square root of 1358954431 is about 36863.9991183811. Note that the first 3 decimals coincide. The cubic root of 1358954431 is about 1107.6476523362.
The spelling of 1358954431 in words is "one billion, three hundred fifty-eight million, nine hundred fifty-four thousand, four hundred thirty-one".
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