21107961 is an odd 8-digits composite number following 21107960
and preceding 21107962 . In scientific notation, it is written as 2.1107961 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 12061656 positive integers (up to 21107961) that are relatively prime to 21107961.
21107961 has 8 divisors, whose sum is 29484224
The reverse of 21107961 is 16970112
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million one hundred seven thousand nine hundred sixty-one
Scientific notation
2.1107961 × 10^7
Engineering notation
2.1107961 × 10^6
Prime Factorization
21 × 3 × 335047
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21107961
Product of the distinct prime numbers
The prime factorization of 21107961 is 21 × 3 × 335047.
Since it has a total of 3 prime factors.
8 , 10 , 42 , 64 , 41 , 972 , 6062 , 3136 , 50557 , 99162 , 928732 , 94103 , 78586 , 5495922 , 10858087 , 23940786 , 708229185 , 288388403 , 6575964194 , 8230591194
n×2
42215922
n×3
63323883
n×4
84431844
n×5
105539805
n÷2
10553980.5
n÷3
7035987
n÷3
5276990.25
n÷5
4221592.2
n2
445546017577521
n3
9.4045679627316E+21
n4
1.9851125377919E+29
n5
4.1901678028322E+36
2 √n
4594.3401049552
3 √n
276.36439738351
4 √n
67.781561688672
5 √n
29.166831764397
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
-21107960
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 21107961 can be divided by 8 positive divisors.
The sum of these divisors (counting 21107961) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100001010011111001
3
Ternary
1110201101200100
4
Quaternary
1100201103321
5
Quinary
20400423321
6
Senary
2032230013
8
Octal
120412371
10
Decimal
21107961
12
Duodecimal
709b309
16
Hexadecimal
14214f9
20
Vigesimal
6bi9i1
36
Base36
ckf09
md5
87d027d3844d9ed144ba1770e66e7a5f
sha1
16b9897c2caf0b05bab32da85a98774981bd90ef
sha256
e1a6ffe44c40d57d424532f0ba3bb9aa0f25e9392b9232b5c2e677999a21806c
sha512
619518d9db1588b0cc7b50cc8ba074eb55640cbb13c9872a12e3f9db59bd3d1f45110977e066bd9b2746c6b036f2c05a80cb09322b6adc5f4e23726bb94157ca
ripemd-160
ab3d55945b11636db5d486d258637bfbd04f95fd
Diameter
42215922
Circumference
132625230.41972
Area
1.3997240956577E+15
Volume
3.9393762162538E+22
Surface area
5.5988963826309E+15
Circumference
132625230.41972
Perimeter
84431844
Area
445546017577521
Diagonal
29851164.720242
Surface area
2673276105465126
Volume
9.4045679627316E+21
Space diagonal
36560060.896182
Perimeter
63323883
Area
1.9292708488856E+14
Altitude
18280030.448091
Surface area
1.9292708488856E+14
Volume
1.1083389634295E+21
Height
9950388.2400808