21686746 is an even 8-digits composite number following 21686745
and preceding 21686747 . In scientific notation, it is written as 2.1686746 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 10371900 positive integers (up to 21686746) that are relatively prime to 21686746.
21686746 has 8 divisors, whose sum is 33944544
The reverse of 21686746 is 64768612
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million six hundred eighty-six thousand seven hundred forty-six
Scientific notation
2.1686746 × 10^7
Engineering notation
2.1686746 × 10^6
Prime Factorization
2 × 23 × 471451
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21686746
Product of the distinct prime numbers
The prime factorization of 21686746 is 2 × 23 × 471451.
Since it has a total of 3 prime factors.
5 , 8 , 56 , 1 , 799 , 357 , 387 , 1243 , 40051 , 44300 , 62199 , 379247 , 4537924 , 6898093 , 39118246 , 19391317 , 508092153 , 601333811 , 8706869682 , 3339262879
n×2
43373492
n×3
65060238
n×4
86746984
n×5
108433730
n÷2
10843373
n÷3
7228915.3333333
n÷3
5421686.5
n÷5
4337349.2
n2
470314952068516
n3
1.0199600905512E+22
n4
2.2119615413921E+29
n5
4.7970248109939E+36
2 √n
4656.9030481641
3 √n
278.86764618536
4 √n
68.241505318714
5 √n
29.325057921616
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
-21686745
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 21686746 can be divided by 8 positive divisors.
The sum of these divisors (counting 21686746) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010101110100111011010
3
Ternary
1111210210121211
4
Quaternary
1102232213122
5
Quinary
21022433441
6
Senary
2052453334
8
Octal
122564732
10
Decimal
21686746
12
Duodecimal
731a24a
16
Hexadecimal
14ae9da
20
Vigesimal
6fagh6
36
Base36
cwtlm
md5
07db87042f08975955eaed1c0f529588
sha1
7b991f467ac00e09742aec918c5954b99b4fc1ae
sha256
dac98571d0195183da024eb4e43c6e0b0f0d98eee6d413298580c34153797802
sha512
221228559e5adb870be534083f42566496573eda51725bddf3d597b91f1c0c03a365c4eeac8fbabbf86553041a61b3ac99b1757323750fc4c9c611c11235117f
ripemd-160
f1fb8b81e1d295a7d782d053406298c14a98f21d
Diameter
43373492
Circumference
136261843.82774
Area
1.4775379982919E+15
Volume
4.2723988365739E+22
Surface area
5.9101519931675E+15
Circumference
136261843.82774
Perimeter
86746984
Area
470314952068516
Diagonal
30669690.31694
Surface area
2821889712411096
Volume
1.0199600905512E+22
Space diagonal
37562545.922841
Perimeter
65060238
Area
2.036523481355E+14
Altitude
18781272.961421
Surface area
2.036523481355E+14
Volume
1.2020344942807E+21
Height
10223230.105647