21106988 is an even 8-digits composite number following 21106987
and preceding 21106989 . In scientific notation, it is written as 2.1106988 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors.
There are 9045840 positive integers (up to 21106988) that are relatively prime to 21106988.
21106988 has 12 divisors, whose sum is 42214032
The reverse of 21106988 is 88960112
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million one hundred six thousand nine hundred eighty-eight
Scientific notation
2.1106988 × 10^7
Engineering notation
2.1106988 × 10^6
Prime Factorization
2 × 2 × 7 × 753821
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10553494
Product of the distinct prime numbers
The prime factorization of 21106988 is 2 × 2 × 7 × 753821.
Since it has a total of 4 prime factors.
2 , 8 , 60 , 33 , 956 , 197 , 8074 , 4908 , 77098 , 11274 , 737879 , 664166 , 2099222 , 6101872 , 66404900 , 54583799 , 90138598 , 804377141 , 6027670347 , 2241683407
n×2
42213976
n×3
63320964
n×4
84427952
n×5
105534940
n÷2
10553494
n÷3
7035662.6666667
n÷3
5276747
n÷5
4221397.6
n2
445504942432144
n3
9.403267473856E+21
n4
1.9847465373147E+29
n5
4.1892021346142E+36
2 √n
4594.2342125756
3 √n
276.36015085474
4 √n
67.780780554487
5 √n
29.16656286253
1 , 2 , 4 , 7 , 14 , 28 , 753821 , 1507642 , 3015284 , 5276747 , 10553494 , 21106988
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21106987
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21106988 can be divided by 12 positive divisors.
The sum of these divisors (counting 21106988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000100001000100101100
3
Ternary
1110201100100022
4
Quaternary
1100201010230
5
Quinary
20400410423
6
Senary
2032221312
8
Octal
120410454
10
Decimal
21106988
12
Duodecimal
709a838
16
Hexadecimal
142112c
20
Vigesimal
6bi798
36
Base36
cke98
md5
a47378ac916da58f5e358e285ba065cc
sha1
6f3b2a345d470f4ebe3953d354b5dc18e5312cbf
sha256
d6001c75fb06cdd3d885a11f782624d4a5cffd7acb9dfcc48b9463c3e7050116
sha512
180bc110bf05e6e472aed250e805e6f057064a41b0f609c3eb440f648b4c2986063c7766e30d05f057af43c9797e9d054f75ebd2dafc67567c3069e3e671565e
ripemd-160
d89a6c397e8d70971ba423bd77dde6cb557ee95c
Diameter
42213976
Circumference
132619116.88042
Area
1.3995950542828E+15
Volume
3.9388314687474E+22
Surface area
5.5983802171311E+15
Circumference
132619116.88042
Perimeter
84427952
Area
445504942432144
Diagonal
29849788.690446
Surface area
2673029654592864
Volume
9.403267473856E+21
Space diagonal
36558375.610747
Perimeter
63320964
Area
1.9290929882888E+14
Altitude
18279187.805373
Surface area
1.9290929882888E+14
Volume
1.1081856993457E+21
Height
9949929.5634821