20888921 is an odd 8-digits composite number following 20888920
and preceding 20888922 . In scientific notation, it is written as 2.0888921 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 20682000 positive integers (up to 20888921) that are relatively prime to 20888921.
20888921 has 4 divisors, whose sum is 21095844
The reverse of 20888921 is 12988802
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million eight hundred eighty-eight thousand nine hundred twenty-one
Scientific notation
2.0888921 × 10^7
Engineering notation
2.0888921 × 10^6
Prime Factorization
101 × 206821
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20888921
Product of the distinct prime numbers
The prime factorization of 20888921 is 101 × 206821.
Since it has a total of 2 prime factors.
9 , 10 , 61 , 74 , 859 , 891 , 702 , 5861 , 4740 , 61243 , 402090 , 105774 , 8080581 , 5445815 , 49348722 , 13945335 , 912602767 , 41823868 , 1404560822 , 7148559467
n×2
41777842
n×3
62666763
n×4
83555684
n×5
104444605
n÷2
10444460.5
n÷3
6962973.6666667
n÷3
5222230.25
n÷5
4177784.2
n2
436347020544241
n3
9.114818440734E+21
n4
1.9039872233784E+29
n5
3.977223869416E+36
2 √n
4570.4399131812
3 √n
275.40511530941
4 √n
67.605028756604
5 √n
29.10604533691
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20888920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20888921 can be divided by 4 positive divisors.
The sum of these divisors (counting 20888921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111101011110101011001
3
Ternary
1110022021012202
4
Quaternary
1033223311121
5
Quinary
20321421141
6
Senary
2023415545
8
Octal
117536531
10
Decimal
20888921
12
Duodecimal
6bb45b5
16
Hexadecimal
13ebd59
20
Vigesimal
6ab261
36
Base36
cfpzt
md5
114f08a386cb160af1c18bce01430552
sha1
b2b74b81fc8144f864760e6c336aa4a8482d4fce
sha256
d27b92d294220598d26a961db56c5751529ab81a0ef5fb33ad005e3dc167f013
sha512
718f049189dfb24aeedb118a84afa8be3b1dc1d76d55d58fab65c56ad9070a1090823f3e01d940b4cd58d98397d9b311cdf30ebf8e396a059d522a728b2ea6ec
ripemd-160
6d85eece2b7c2432fad641fd01aa4eec5f1dbaf7
Diameter
41777842
Circumference
131248961.51004
Area
1.3708245941576E+15
Volume
3.8180062202953E+22
Surface area
5.4832983766303E+15
Circumference
131248961.51004
Perimeter
83555684
Area
436347020544241
Diagonal
29541395.38154
Surface area
2618082123265446
Volume
9.114818440734E+21
Space diagonal
36180672.487292
Perimeter
62666763
Area
1.8894380232848E+14
Altitude
18090336.243646
Surface area
1.8894380232848E+14
Volume
1.0741916547879E+21
Height
9847131.7938467