21131689 is an odd 8-digits prime number following 21131688
and preceding 21131690 . In scientific notation, it is written as 2.1131689 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 21131688 positive integers (up to 21131689) that are relatively prime to 21131689.
21131689 has 2 divisors, whose sum is 21131690
The reverse of 21131689 is 98613112
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million one hundred thirty-one thousand six hundred eighty-nine
Scientific notation
2.1131689 × 10^7
Engineering notation
2.1131689 × 10^6
Prime Factorization
21131689
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21131689
Product of the distinct prime numbers
The prime factorization of 21131689 is 21131689.
Since it has a total of 1 prime factors.
1 , 2 , 93 , 34 , 279 , 788 , 8518 , 8892 , 80772 , 40374 , 849882 , 706087 , 9473895 , 2112284 , 16684699 , 37596595 , 893648403 , 205967015 , 977282144 , 4677977606
n×2
42263378
n×3
63395067
n×4
84526756
n×5
105658445
n÷2
10565844.5
n÷3
7043896.3333333
n÷3
5282922.25
n÷5
4226337.8
n2
446548279992721
n3
9.4363193762911E+21
n4
1.9940536636446E+29
n5
4.2137721869448E+36
2 √n
4596.9216873904
3 √n
276.46791470533
4 √n
67.800602411707
5 √n
29.17338625447
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21131690
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10565845
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4596.9217961588
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999053554
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21131689 can be divided by 2 positive divisors.
The sum of these divisors (counting 21131689) is 21131690, the average is 10565845.
Base
System
Value
2
Binary
1010000100111000110101001
3
Ternary
1110202121020011
4
Quaternary
1100213012221
5
Quinary
20402203224
6
Senary
2032531521
8
Octal
120470651
10
Decimal
21131689
12
Duodecimal
70b0ba1
16
Hexadecimal
14271a9
20
Vigesimal
6c1949
36
Base36
ckxbd
md5
7a0a93425d06681a72baa9ceac5c4109
sha1
80c3f389534707dbd70f337fe0e1aee2838e3c26
sha256
3f3fbc5015d1f2ebe1cbb6a342da0d7befa781ee11f0cfbe9190164473e40517
sha512
2cd5ff6a20e0fdef7c92160c56b4fb6624775dd065543bcd505abfd1a8b419602e0ffc72ca0059d500b70063e57083ace5d15b5ede37bd4b3b69292855c3d988
ripemd-160
5604251a167dab3eb7c76bdb9b559e7b77421601
Diameter
42263378
Circumference
132774317.84069
Area
1.4028727958983E+15
Volume
3.9526762172644E+22
Surface area
5.6114911835932E+15
Circumference
132774317.84069
Perimeter
84526756
Area
446548279992721
Diagonal
29884721.17965
Surface area
2679289679956326
Volume
9.4363193762911E+21
Space diagonal
36601158.997744
Perimeter
63395067
Area
1.9336107724497E+14
Altitude
18300579.498872
Surface area
1.9336107724497E+14
Volume
1.1120809034029E+21
Height
9961573.7265501