Base | Representation |
---|---|
bin | 1010001010011… |
… | …01000000100101 |
3 | 12221102011010120 |
4 | 11011031000211 |
5 | 133311000320 |
6 | 12243112153 |
7 | 2053420344 |
oct | 505150045 |
9 | 187364116 |
10 | 85250085 |
11 | 44137718 |
12 | 24672659 |
13 | 1487ac4b |
14 | b471b5b |
15 | 773e440 |
hex | 514d025 |
85250085 has 16 divisors (see below), whose sum is σ = 138128640. Its totient is φ = 44890560.
The previous prime is 85250083. The next prime is 85250101. The reversal of 85250085 is 58005258.
It is not a de Polignac number, because 85250085 - 21 = 85250083 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (85250083) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34786 + ... + 37155.
It is an arithmetic number, because the mean of its divisors is an integer number (8633040).
Almost surely, 285250085 is an apocalyptic number.
It is an amenable number.
85250085 is a deficient number, since it is larger than the sum of its proper divisors (52878555).
85250085 is a wasteful number, since it uses less digits than its factorization.
85250085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 72028.
The product of its (nonzero) digits is 16000, while the sum is 33.
The square root of 85250085 is about 9233.0972593166. The cubic root of 85250085 is about 440.1137533023.
The spelling of 85250085 in words is "eighty-five million, two hundred fifty thousand, eighty-five".
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