Base | Representation |
---|---|
bin | 1010001110101… |
… | …00111101011111 |
3 | 12222110102222221 |
4 | 11013110331133 |
5 | 133431310233 |
6 | 12303050211 |
7 | 2061230005 |
oct | 507247537 |
9 | 188412887 |
10 | 85806943 |
11 | 44488032 |
12 | 248a0967 |
13 | 14a14551 |
14 | b578a75 |
15 | 77ee42d |
hex | 51d4f5f |
85806943 has 2 divisors, whose sum is σ = 85806944. Its totient is φ = 85806942.
The previous prime is 85806899. The next prime is 85806953. The reversal of 85806943 is 34960858.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 85806943 - 225 = 52252511 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 85806943.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (85806953) 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, 42903471 + 42903472.
It is an arithmetic number, because the mean of its divisors is an integer number (42903472).
Almost surely, 285806943 is an apocalyptic number.
85806943 is a deficient number, since it is larger than the sum of its proper divisors (1).
85806943 is an equidigital number, since it uses as much as digits as its factorization.
85806943 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 207360, while the sum is 43.
The square root of 85806943 is about 9263.2037114597. The cubic root of 85806943 is about 441.0699563197.
The spelling of 85806943 in words is "eighty-five million, eight hundred six thousand, nine hundred forty-three".
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