Base | Representation |
---|---|
bin | 10110111110011… |
… | …011011111001111 |
3 | 222212022121120111 |
4 | 112332123133033 |
5 | 1242134324041 |
6 | 102125500451 |
7 | 12360251353 |
oct | 2676333717 |
9 | 885277514 |
10 | 385464271 |
11 | 188648015 |
12 | a9111727 |
13 | 61b2238a |
14 | 3929d463 |
15 | 23c91981 |
hex | 16f9b7cf |
385464271 has 2 divisors, whose sum is σ = 385464272. Its totient is φ = 385464270.
The previous prime is 385464269. The next prime is 385464281. The reversal of 385464271 is 172464583.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 385464271 - 21 = 385464269 is a prime.
It is a super-2 number, since 2×3854642712 = 297165408435122882, which contains 22 as substring.
Together with 385464269, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (385464281) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192732135 + 192732136.
It is an arithmetic number, because the mean of its divisors is an integer number (192732136).
Almost surely, 2385464271 is an apocalyptic number.
385464271 is a deficient number, since it is larger than the sum of its proper divisors (1).
385464271 is an equidigital number, since it uses as much as digits as its factorization.
385464271 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 161280, while the sum is 40.
The square root of 385464271 is about 19633.2440263956. The cubic root of 385464271 is about 727.7709392611.
The spelling of 385464271 in words is "three hundred eighty-five million, four hundred sixty-four thousand, two hundred seventy-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •