Base | Representation |
---|---|
bin | 1010001000100… |
… | …11000000000000 |
3 | 12220222002012101 |
4 | 11010103000000 |
5 | 133230344410 |
6 | 12234040144 |
7 | 2051410540 |
oct | 504230000 |
9 | 186862171 |
10 | 85012480 |
11 | 43a95153 |
12 | 24579054 |
13 | 147c6a57 |
14 | b40d320 |
15 | 76e3d3a |
hex | 5113000 |
85012480 has 104 divisors (see below), whose sum is σ = 233541792. Its totient is φ = 29097984.
The previous prime is 85012471. The next prime is 85012483. The reversal of 85012480 is 8421058.
It is a Harshad number since it is a multiple of its sum of digits (28).
It is not an unprimeable number, because it can be changed into a prime (85012483) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143064 + ... + 143656.
Almost surely, 285012480 is an apocalyptic number.
85012480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 85012480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116770896).
85012480 is an abundant number, since it is smaller than the sum of its proper divisors (148529312).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
85012480 is an equidigital number, since it uses as much as digits as its factorization.
85012480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 629 (or 607 counting only the distinct ones).
The product of its (nonzero) digits is 2560, while the sum is 28.
The square root of 85012480 is about 9220.2212554797. The cubic root of 85012480 is about 439.7044847644.
The spelling of 85012480 in words is "eighty-five million, twelve thousand, four hundred eighty".
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