21231685 is an odd 8-digits composite number following 21231684
and preceding 21231686 . In scientific notation, it is written as 2.1231685 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 16752384 positive integers (up to 21231685) that are relatively prime to 21231685.
21231685 has 8 divisors, whose sum is 25827480
The reverse of 21231685 is 58613212
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million two hundred thirty-one thousand six hundred eighty-five
Scientific notation
2.1231685 × 10^7
Engineering notation
2.1231685 × 10^6
Prime Factorization
5 × 73 × 58169
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21231685
Product of the distinct prime numbers
The prime factorization of 21231685 is 5 × 73 × 58169.
Since it has a total of 3 prime factors.
6 , 4 , 76 , 88 , 47 , 290 , 4857 , 6459 , 83483 , 98206 , 674288 , 353481 , 7669288 , 5031183 , 38833607 , 9801927 , 759253904 , 321570018 , 2489916552 , 3406367774
n×2
42463370
n×3
63695055
n×4
84926740
n×5
106158425
n÷2
10615842.5
n÷3
7077228.3333333
n÷3
5307921.25
n÷5
4246337
n2
450784447939225
n3
9.5709134015445E+21
n4
2.0320661850387E+29
n5
4.3144189139894E+36
2 √n
4607.7852597533
3 √n
276.90331440363
4 √n
67.880669264182
5 √n
29.200944068643
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21231684
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21231685 can be divided by 8 positive divisors.
The sum of these divisors (counting 21231685) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000111111100001000101
3
Ternary
1110221200101201
4
Quaternary
1100333201011
5
Quinary
20413403220
6
Senary
2035022501
8
Octal
120774105
10
Decimal
21231685
12
Duodecimal
713aa31
16
Hexadecimal
143f845
20
Vigesimal
6cdj45
36
Base36
cn2h1
md5
7289a1daf7e8193cf3cf2db331b6dca5
sha1
27629988ce3bcd4086817345bdb01d2beb5ab60b
sha256
9316a41359033c8655fe919bf21369fd148ce425e45620ebe53b688ea007aa0f
sha512
5ecbff675e82e939a39ddf9128bc9ff19062fdf4b50b7f4c1671ec576602a6ee2f0889e18841f3ad1051505990823b9e8434f97bb9dd3509a9b6bcfa59c0f1c8
ripemd-160
49a2c5fef78566774f3dd498144c1aa5660050b0
Diameter
42463370
Circumference
133402611.23867
Area
1.4161811099984E+15
Volume
4.0090548307249E+22
Surface area
5.6647244399936E+15
Circumference
133402611.23867
Perimeter
84926740
Area
450784447939225
Diagonal
30026136.879033
Surface area
2704706687635350
Volume
9.5709134015445E+21
Space diagonal
36774357.150298
Perimeter
63695055
Area
1.9519539177316E+14
Altitude
18387178.575149
Surface area
1.9519539177316E+14
Volume
1.1279429613969E+21
Height
10008712.293011