Base | Representation |
---|---|
bin | 1010001010101… |
… | …00010111001111 |
3 | 12221110200110012 |
4 | 11011110113033 |
5 | 133312431312 |
6 | 12243503435 |
7 | 2053604225 |
oct | 505242717 |
9 | 187420405 |
10 | 85280207 |
11 | 44158311 |
12 | 24687b7b |
13 | 1488b87c |
14 | b47cb15 |
15 | 7748322 |
hex | 51545cf |
85280207 has 2 divisors, whose sum is σ = 85280208. Its totient is φ = 85280206.
The previous prime is 85280203. The next prime is 85280323. The reversal of 85280207 is 70208258.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 85280207 - 22 = 85280203 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (85280201) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42640103 + 42640104.
It is an arithmetic number, because the mean of its divisors is an integer number (42640104).
Almost surely, 285280207 is an apocalyptic number.
85280207 is a deficient number, since it is larger than the sum of its proper divisors (1).
85280207 is an equidigital number, since it uses as much as digits as its factorization.
85280207 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 8960, while the sum is 32.
The square root of 85280207 is about 9234.7283121920. The cubic root of 85280207 is about 440.1655833401.
The spelling of 85280207 in words is "eighty-five million, two hundred eighty thousand, two hundred seven".
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