21388013 is an odd 8-digits prime number following 21388012
and preceding 21388014 . In scientific notation, it is written as 2.1388013 × 10^7.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 21388012 positive integers (up to 21388013) that are relatively prime to 21388013.
21388013 has 2 divisors, whose sum is 21388014
The reverse of 21388013 is 31088312
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million three hundred eighty-eight thousand thirteen
Scientific notation
2.1388013 × 10^7
Engineering notation
2.1388013 × 10^6
Prime Factorization
21388013
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21388013
Product of the distinct prime numbers
The prime factorization of 21388013 is 21388013.
Since it has a total of 1 prime factors.
4 , 1 , 86 , 77 , 105 , 822 , 267 , 8826 , 85952 , 88650 , 737806 , 232418 , 7853060 , 7529122 , 44943306 , 38388906 , 974797287 , 328212598 , 1285734911 , 151327051
n×2
42776026
n×3
64164039
n×4
85552052
n×5
106940065
n÷2
10694006.5
n÷3
7129337.6666667
n÷3
5347003.25
n÷5
4277602.6
n2
457447100088169
n3
9.7838845234981E+21
n4
2.0925784937908E+29
n5
4.4756096028717E+36
2 √n
4624.7176130008
3 √n
277.58126235204
4 √n
68.005276361477
5 √n
29.243819042856
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21388014
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10694007
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4624.7177211155
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999064897
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21388013 can be divided by 2 positive divisors.
The sum of these divisors (counting 21388013) is 21388014, the average is 10694007.
Base
System
Value
2
Binary
1010001100101101011101101
3
Ternary
1111020121211122
4
Quaternary
1101211223231
5
Quinary
20433404023
6
Senary
2042230325
8
Octal
121455355
10
Decimal
21388013
12
Duodecimal
71b53a5
16
Hexadecimal
1465aed
20
Vigesimal
6dda0d
36
Base36
cqf3h
md5
e51d8e656c63df101fcdee33069bc4be
sha1
e377e12fea60337d40a847aaa6aae0de289ff803
sha256
bec5db9ec98482244c80e763a429e8aa0b4dc3492ccb2be6eabc02ede66b6c44
sha512
4b7b1844c5b282c9ab6f460cd1eb88350285e9ab449fc97509e4811d55743acd718cbb58db36e52cacf5a9c027e443e4ffa6afb28544f5c0d99dd8272fe5315b
ripemd-160
695a22b54f91ea4aea6850e74e6936fae2fafc9c
Diameter
42776026
Circumference
134384849.03137
Area
1.4371124490429E+15
Volume
4.098263965679E+22
Surface area
5.7484497961718E+15
Circumference
134384849.03137
Perimeter
85552052
Area
457447100088169
Diagonal
30247218.056812
Surface area
2744682600529014
Volume
9.7838845234981E+21
Space diagonal
37045125.188944
Perimeter
64164039
Area
1.9808040478194E+14
Altitude
18522562.594472
Surface area
1.9808040478194E+14
Volume
1.1530418488186E+21
Height
10082406.018937