Base | Representation |
---|---|
bin | 110000000101100… |
… | …101010010010000 |
3 | 2002020002011010021 |
4 | 300011211102100 |
5 | 3123013113213 |
6 | 212015513224 |
7 | 25664300365 |
oct | 6005452220 |
9 | 2066064107 |
10 | 806769808 |
11 | 384445109 |
12 | 1a6228814 |
13 | cb1b33b0 |
14 | 7920c46c |
15 | 4ac62d8d |
hex | 30165490 |
806769808 has 20 divisors (see below), whose sum is σ = 1683356668. Its totient is φ = 372355200.
The previous prime is 806769797. The next prime is 806769809. The reversal of 806769808 is 808967608.
It can be written as a sum of positive squares in 2 ways, for example, as 69755904 + 737013904 = 8352^2 + 27148^2 .
It is a Harshad number since it is a multiple of its sum of digits (52).
It is not an unprimeable number, because it can be changed into a prime (806769809) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1939143 + ... + 1939558.
Almost surely, 2806769808 is an apocalyptic number.
It is an amenable number.
806769808 is an abundant number, since it is smaller than the sum of its proper divisors (876586860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
806769808 is a wasteful number, since it uses less digits than its factorization.
806769808 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3878722 (or 3878716 counting only the distinct ones).
The product of its (nonzero) digits is 1161216, while the sum is 52.
The square root of 806769808 is about 28403.6935626337. The cubic root of 806769808 is about 930.9289703886.
The spelling of 806769808 in words is "eight hundred six million, seven hundred sixty-nine thousand, eight hundred eight".
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