Base | Representation |
---|---|
bin | 110000001101101… |
… | …011111000100000 |
3 | 2002101002001221110 |
4 | 300031223320200 |
5 | 3124034101414 |
6 | 212133223320 |
7 | 26021325333 |
oct | 6015537040 |
9 | 2071061843 |
10 | 808893984 |
11 | 385666028 |
12 | 1a6a91b40 |
13 | cb7781c2 |
14 | 7960261a |
15 | 4b032459 |
hex | 3036be20 |
808893984 has 144 divisors (see below), whose sum is σ = 2259889632. Its totient is φ = 253188096.
The previous prime is 808893979. The next prime is 808893997. The reversal of 808893984 is 489398808.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3471532 + ... + 3471764.
It is an arithmetic number, because the mean of its divisors is an integer number (15693678).
Almost surely, 2808893984 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 808893984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1129944816).
808893984 is an abundant number, since it is smaller than the sum of its proper divisors (1450995648).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
808893984 is a wasteful number, since it uses less digits than its factorization.
808893984 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 347 (or 310 counting only the distinct ones).
The product of its (nonzero) digits is 3981312, while the sum is 57.
The square root of 808893984 is about 28441.0615835626. The cubic root of 808893984 is about 931.7452808914.
The spelling of 808893984 in words is "eight hundred eight million, eight hundred ninety-three thousand, nine hundred eighty-four".
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