21438061 is an odd 8-digits composite number following 21438060
and preceding 21438062 . In scientific notation, it is written as 2.1438061 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 20220480 positive integers (up to 21438061) that are relatively prime to 21438061.
21438061 has 8 divisors, whose sum is 22665600
The reverse of 21438061 is 16083412
Previous prime number is 239
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million four hundred thirty-eight thousand sixty-one
Scientific notation
2.1438061 × 10^7
Engineering notation
2.1438061 × 10^6
Prime Factorization
19 × 239 × 4721
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21438061
Product of the distinct prime numbers
The prime factorization of 21438061 is 19 × 239 × 4721.
Since it has a total of 3 prime factors.
5 , 7 , 49 , 40 , 877 , 448 , 4008 , 5443 , 20477 , 44193 , 998892 , 593570 , 8051405 , 8200811 , 76192523 , 4695335 , 258638629 , 944600014 , 4604948059 , 7236653422
n×2
42876122
n×3
64314183
n×4
85752244
n×5
107190305
n÷2
10719030.5
n÷3
7146020.3333333
n÷3
5359515.25
n÷5
4287612.2
n2
459590459439721
n3
9.8527283044868E+21
n4
2.1122339040801E+29
n5
4.5282199281938E+36
2 √n
4630.1253762722
3 √n
277.7976072896
4 √n
68.045024625407
5 √n
29.257492371461
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
-21438060
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 21438061 can be divided by 8 positive divisors.
The sum of these divisors (counting 21438061) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001110001111001101101
3
Ternary
1111100011111021
4
Quaternary
1101301321231
5
Quinary
20442004221
6
Senary
2043254141
8
Octal
121617155
10
Decimal
21438061
12
Duodecimal
721a351
16
Hexadecimal
1471e6d
20
Vigesimal
6djf31
36
Base36
crhpp
md5
fc71065dd9c3ed70ec5ad164ee11f22b
sha1
7bafcbd6402de5adcd333d3cc5f6106c93e158a2
sha256
3df9645bc9b6cdee3791c0ca104118ef66695d343afe215dc7a28e7327c39e2f
sha512
c568062c71a181f599077893cd75d74df684deef75ae923dfdac0247b276fc1859a2d9aa06509b6c373a8e422c636ada01a15ae195301c7c0ad2a6d0c633d154
ripemd-160
6773c19f1e56f80b87d65c33ee5a527ceec55e13
Diameter
42876122
Circumference
134699309.88962
Area
1.4438460110358E+15
Volume
4.1271011812256E+22
Surface area
5.7753840441431E+15
Circumference
134699309.88962
Perimeter
85752244
Area
459590459439721
Diagonal
30317996.617182
Surface area
2757542756638326
Volume
9.8527283044868E+21
Space diagonal
37131810.867761
Perimeter
64314183
Area
1.9900850660588E+14
Altitude
18565905.43388
Surface area
1.9900850660588E+14
Volume
1.1611551662152E+21
Height
10105998.872394