20921131 is an odd 8-digits composite number following 20921130
and preceding 20921132 . In scientific notation, it is written as 2.0921131 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 16302120 positive integers (up to 20921131) that are relatively prime to 20921131.
20921131 has 4 divisors, whose sum is 21192912
The reverse of 20921131 is 13112902
Previous prime number is 77
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million nine hundred twenty-one thousand one hundred thirty-one
Scientific notation
2.0921131 × 10^7
Engineering notation
2.0921131 × 10^6
Prime Factorization
77 × 271703
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20921131
Product of the distinct prime numbers
The prime factorization of 20921131 is 77 × 271703.
Since it has a total of 2 prime factors.
7 , 9 , 85 , 56 , 782 , 87 , 4873 , 1032 , 71861 , 12451 , 519252 , 84053 , 2778545 , 2655153 , 90766671 , 25971707 , 457784688 , 626977545 , 8068719896 , 5499075143
n×2
41842262
n×3
62763393
n×4
83684524
n×5
104605655
n÷2
10460565.5
n÷3
6973710.3333333
n÷3
5230282.75
n÷5
4184226.2
n2
437693722319161
n3
9.1570477025168E+21
n4
1.915757945576E+29
n5
4.0079822943687E+36
2 √n
4573.9622866832
3 √n
275.5465976958
4 √n
67.631074859736
5 √n
29.115015910489
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
-20921130
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 20921131 can be divided by 4 positive divisors.
The sum of these divisors (counting 20921131) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110011101100101011
3
Ternary
1110100220101201
4
Quaternary
1033303230223
5
Quinary
20323434011
6
Senary
2024225031
8
Octal
117635453
10
Decimal
20921131
12
Duodecimal
700b177
16
Hexadecimal
13f3b2b
20
Vigesimal
6af2gb
36
Base36
cgeuj
md5
3c88c3886130c8c04fb4d3aa870c62b1
sha1
6283aeab9193cd961717409bdf3c746013543268
sha256
464b1032b30911269137e0f2c83930229e1ef44477f9035d8619dc1920d86947
sha512
b2362207923a4193970811b0a16c53e7d490500f77510c5d682f40c893d314736c80a70cf79c8e5ca631d61536e99aa7690c9055ee7734290fb7e374d12fcd6a
ripemd-160
ef7e42694722243baf86c2609fd72adec7775fc6
Diameter
41842262
Circumference
131451342.90878
Area
1.3750553825602E+15
Volume
3.8356951721064E+22
Surface area
5.500221530241E+15
Circumference
131451342.90878
Perimeter
83684524
Area
437693722319161
Diagonal
29586947.200384
Surface area
2626162333914966
Volume
9.1570477025168E+21
Space diagonal
36236461.843804
Perimeter
62763393
Area
1.8952694130268E+14
Altitude
18118230.921902
Surface area
1.8952694130268E+14
Volume
1.0791684210164E+21
Height
9862315.7334614