21131427 is an odd 8-digits composite number following 21131426
and preceding 21131428 . In scientific notation, it is written as 2.1131427 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 14053160 positive integers (up to 21131427) that are relatively prime to 21131427.
21131427 has 8 divisors, whose sum is 28244160
The reverse of 21131427 is 72413112
Previous prime number is 419
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million one hundred thirty-one thousand four hundred twenty-seven
Scientific notation
2.1131427 × 10^7
Engineering notation
2.1131427 × 10^6
Prime Factorization
3 × 419 × 16811
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21131427
Product of the distinct prime numbers
The prime factorization of 21131427 is 3 × 419 × 16811.
Since it has a total of 3 prime factors.
8 , 9 , 59 , 46 , 467 , 299 , 1665 , 7068 , 73310 , 29032 , 670400 , 184096 , 281437 , 8256281 , 70171039 , 3636298 , 759270105 , 556764367 , 6173329768 , 6951386277
n×2
42262854
n×3
63394281
n×4
84525708
n×5
105657135
n÷2
10565713.5
n÷3
7043809
n÷3
5282856.75
n÷5
4226285.4
n2
446537207056329
n3
9.4359683936947E+21
n4
1.9939547728567E+29
n5
4.2135109723922E+36
2 √n
4596.8931899708
3 √n
276.46677211022
4 √n
67.800392255287
5 √n
29.173313913209
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
-21131426
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 21131427 can be divided by 8 positive divisors.
The sum of these divisors (counting 21131427) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100111000010100011
3
Ternary
1110202120212110
4
Quaternary
1100213002203
5
Quinary
20402201202
6
Senary
2032530403
8
Octal
120470243
10
Decimal
21131427
12
Duodecimal
70b0a03
16
Hexadecimal
14270a3
20
Vigesimal
6c18b7
36
Base36
ckx43
md5
c98e5d9d8174aa313fdfa71bfbe97db8
sha1
8fb2efe4bb2e8ce8a2bcb87d6d4a866d7167280c
sha256
2893064136d67388682ca48cac1561a5691873e3b49896578360a6e9e3c41b69
sha512
8ba02fc9629e6e92ddfb224702ded729700f60f793d1cffbaf46cd49ac31be280f16ff37edd93a594ec43b71873744607579720c51ed26ecfdaaeb2a9726a3d6
ripemd-160
7914df772c64fefa51680f53fcdc5830f4d8cfd0
Diameter
42262854
Circumference
132772671.64614
Area
1.4028380092427E+15
Volume
3.9525291980182E+22
Surface area
5.6113520369707E+15
Circumference
132772671.64614
Perimeter
84525708
Area
446537207056329
Diagonal
29884350.655697
Surface area
2679223242337974
Volume
9.4359683936947E+21
Space diagonal
36600705.200433
Perimeter
63394281
Area
1.9335628252287E+14
Altitude
18300352.600216
Surface area
1.9335628252287E+14
Volume
1.1120395397072E+21
Height
9961450.2185657