21036491 is an odd 8-digits composite number following 21036490
and preceding 21036492 . In scientific notation, it is written as 2.1036491 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 18031272 positive integers (up to 21036491) that are relatively prime to 21036491.
21036491 has 4 divisors, whose sum is 24041712
The reverse of 21036491 is 19463012
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million thirty-six thousand four hundred ninety-one
Scientific notation
2.1036491 × 10^7
Engineering notation
2.1036491 × 10^6
Prime Factorization
7 × 3005213
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21036491
Product of the distinct prime numbers
The prime factorization of 21036491 is 7 × 3005213.
Since it has a total of 2 prime factors.
3 , 1 , 89 , 38 , 183 , 908 , 3071 , 9512 , 70322 , 1084 , 864938 , 51063 , 5140785 , 1190439 , 67292357 , 15134331 , 689851303 , 987087027 , 2455155989 , 7570735460
n×2
42072982
n×3
63109473
n×4
84145964
n×5
105182455
n÷2
10518245.5
n÷3
7012163.6666667
n÷3
5259122.75
n÷5
4207298.2
n2
442533953593081
n3
9.3093615319553E+21
n4
1.9583630008272E+29
n5
4.1197085641635E+36
2 √n
4586.5554613457
3 √n
276.05212818514
4 √n
67.724112850193
5 √n
29.147053610807
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
-21036490
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 21036491 can be divided by 4 positive divisors.
The sum of these divisors (counting 21036491) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001111110111001011
3
Ternary
1110120202122022
4
Quaternary
1100033313023
5
Quinary
20341131431
6
Senary
2030515055
8
Octal
120176713
10
Decimal
21036491
12
Duodecimal
7065a8b
16
Hexadecimal
140fdcb
20
Vigesimal
6b9b4b
36
Base36
civuz
md5
f5d8dc57f543032c3b7381cabed294ac
sha1
ab014cc30d185d88cee63116c567b2e9798a5efd
sha256
08ff7029641eb38f5f0d5fb9bf2b5e2aeb6aa414b50d938382e9c3841aaf0064
sha512
7cf98073e86e298c822e0dd4a1669432e1f075ce835d4ba6b3c9a1a8be998342667b053206d4101f2f57fc9e4a8ee6184b15d8f64d55e43bb4c5f3c2b015949e
ripemd-160
64dbe775313b8a9a1c37e1900c0d1acc703a9f44
Diameter
42072982
Circumference
132176171.16582
Area
1.3902614175721E+15
Volume
3.8994962397869E+22
Surface area
5.5610456702883E+15
Circumference
132176171.16582
Perimeter
84145964
Area
442533953593081
Diagonal
29750090.87694
Surface area
2655203721558486
Volume
9.3093615319553E+21
Space diagonal
36436271.224965
Perimeter
63109473
Area
1.9162282292439E+14
Altitude
18218135.612483
Surface area
1.9162282292439E+14
Volume
1.0971187779605E+21
Height
9916696.9589799