20921188 is an even 8-digits composite number following 20921187
and preceding 20921189 . In scientific notation, it is written as 2.0921188 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 6 positive divisors.
There are 10460592 positive integers (up to 20921188) that are relatively prime to 20921188.
20921188 has 6 divisors, whose sum is 36612086
The reverse of 20921188 is 88112902
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million nine hundred twenty-one thousand one hundred eighty-eight
Scientific notation
2.0921188 × 10^7
Engineering notation
2.0921188 × 10^6
Prime Factorization
2 × 2 × 5230297
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10460594
Product of the distinct prime numbers
The prime factorization of 20921188 is 2 × 2 × 5230297.
Since it has a total of 3 prime factors.
7 , 9 , 96 , 37 , 390 , 436 , 1250 , 3483 , 456 , 76126 , 625565 , 130013 , 6824242 , 5415476 , 42443801 , 62942384 , 422751098 , 500204069 , 1033394427 , 137417991
n×2
41842376
n×3
62763564
n×4
83684752
n×5
104605940
n÷2
10460594
n÷3
6973729.3333333
n÷3
5230297
n÷5
4184237.6
n2
437696107331344
n3
9.1571225483472E+21
n4
1.9157788237301E+29
n5
4.0080368937677E+36
2 √n
4573.9685176004
3 √n
275.54684793947
4 √n
67.63112092521
5 √n
29.115031775349
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921187
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921188 can be divided by 6 positive divisors.
The sum of these divisors (counting 20921188) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001111110011101101100100
3
Ternary
1110100220110211
4
Quaternary
1033303231210
5
Quinary
20323434223
6
Senary
2024225204
8
Octal
117635544
10
Decimal
20921188
12
Duodecimal
700b204
16
Hexadecimal
13f3b64
20
Vigesimal
6af2j8
36
Base36
cgew4
md5
adc9ceeeaafd526d07e50aa74033ef17
sha1
0f4ae468b840e7b3f127ce890f6d89a67b303a6f
sha256
ca83e4931d1f9e809368489a6ec8922a21691dd8d2a03446b18e43c31ab7c330
sha512
0ea4fb61e787d2b5e65e9ef1291365891b7664fed232b65201b7aa2d5c7ebd8d01fe0ed63e94b9b5f32911ae64fc788d864a1fb09b653f1deaa6334657f3f224
ripemd-160
c20a3a0df048ce696a98088ce9fc57aab11d30b3
Diameter
41842376
Circumference
131451701.05034
Area
1.375062875297E+15
Volume
3.8357265234545E+22
Surface area
5.500251501188E+15
Circumference
131451701.05034
Perimeter
83684752
Area
437696107331344
Diagonal
29587027.810557
Surface area
2626176643988064
Volume
9.1571225483472E+21
Space diagonal
36236560.5707
Perimeter
62763564
Area
1.8952797404325E+14
Altitude
18118280.28535
Surface area
1.8952797404325E+14
Volume
1.0791772416821E+21
Height
9862342.6035191