Base | Representation |
---|---|
bin | 110000001111100… |
… | …100001011010000 |
3 | 2002102000002211100 |
4 | 300033210023100 |
5 | 3124200333304 |
6 | 212151544400 |
7 | 26025450000 |
oct | 6017441320 |
9 | 2072002740 |
10 | 809386704 |
11 | 385972235 |
12 | 1a708b100 |
13 | cb8bb559 |
14 | 796d0000 |
15 | 4b0cd439 |
hex | 303e42d0 |
809386704 has 150 divisors (see below), whose sum is σ = 2643656626. Its totient is φ = 231154560.
The previous prime is 809386703. The next prime is 809386741. The reversal of 809386704 is 407683908.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 731594304 + 77792400 = 27048^2 + 8820^2 .
It is a super-2 number, since 2×8093867042 = 1310213673223967232, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 809386704.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (809386703) by changing a digit.
It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 344574 + ... + 346914.
Almost surely, 2809386704 is an apocalyptic number.
809386704 is a gapful number since it is divisible by the number (84) 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 809386704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1321828313).
809386704 is an abundant number, since it is smaller than the sum of its proper divisors (1834269922).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
809386704 is a wasteful number, since it uses less digits than its factorization.
809386704 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2383 (or 2353 counting only the distinct ones).
The product of its (nonzero) digits is 290304, while the sum is 45.
The square root of 809386704 is about 28449.7223888037. The cubic root of 809386704 is about 931.9344265481.
The spelling of 809386704 in words is "eight hundred nine million, three hundred eighty-six thousand, seven hundred four".
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