Base | Representation |
---|---|
bin | 100111001011… |
… | …110001000000 |
3 | 201022212021100 |
4 | 213023301000 |
5 | 10112144213 |
6 | 1004054400 |
7 | 153210651 |
oct | 47136100 |
9 | 21285240 |
10 | 10271808 |
11 | 58863a8 |
12 | 3534400 |
13 | 21884c1 |
14 | 1515528 |
15 | d7d773 |
hex | 9cbc40 |
10271808 has 84 divisors (see below), whose sum is σ = 31203900. Its totient is φ = 3219456.
The previous prime is 10271749. The next prime is 10271809. The reversal of 10271808 is 80817201.
It can be written as a sum of positive squares in 2 ways, for example, as 8714304 + 1557504 = 2952^2 + 1248^2 .
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is not an unprimeable number, because it can be changed into a prime (10271809) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9268 + ... + 10316.
It is an arithmetic number, because the mean of its divisors is an integer number (371475).
Almost surely, 210271808 is an apocalyptic number.
10271808 is a gapful number since it is divisible by the number (18) 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 10271808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15601950).
10271808 is an abundant number, since it is smaller than the sum of its proper divisors (20932092).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10271808 is a wasteful number, since it uses less digits than its factorization.
10271808 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1084 (or 1071 counting only the distinct ones).
The product of its (nonzero) digits is 896, while the sum is 27.
The square root of 10271808 is about 3204.9661464671. The cubic root of 10271808 is about 217.3780211803.
The spelling of 10271808 in words is "ten million, two hundred seventy-one thousand, eight hundred eight".
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