Base | Representation |
---|---|
bin | 1010001011110… |
… | …01010111110111 |
3 | 12221202101101201 |
4 | 11011321113313 |
5 | 133332304144 |
6 | 12251033331 |
7 | 2055105205 |
oct | 505712767 |
9 | 187671351 |
10 | 85431799 |
11 | 442511a2 |
12 | 2473b847 |
13 | 1491287b |
14 | b4bc075 |
15 | 77781d4 |
hex | 51795f7 |
85431799 has 2 divisors, whose sum is σ = 85431800. Its totient is φ = 85431798.
The previous prime is 85431761. The next prime is 85431833. The reversal of 85431799 is 99713458.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 85431799 - 29 = 85431287 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (85431719) 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, 42715899 + 42715900.
It is an arithmetic number, because the mean of its divisors is an integer number (42715900).
Almost surely, 285431799 is an apocalyptic number.
85431799 is a deficient number, since it is larger than the sum of its proper divisors (1).
85431799 is an equidigital number, since it uses as much as digits as its factorization.
85431799 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 272160, while the sum is 46.
The square root of 85431799 is about 9242.9323810142. The cubic root of 85431799 is about 440.4262381308.
The spelling of 85431799 in words is "eighty-five million, four hundred thirty-one thousand, seven hundred ninety-nine".
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