21004761 is an odd 8-digits composite number following 21004760
and preceding 21004762 . In scientific notation, it is written as 2.1004761 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 14003172 positive integers (up to 21004761) that are relatively prime to 21004761.
21004761 has 4 divisors, whose sum is 28006352
The reverse of 21004761 is 16740012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million four thousand seven hundred sixty-one
Scientific notation
2.1004761 × 10^7
Engineering notation
2.1004761 × 10^6
Prime Factorization
3 × 7001587
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21004761
Product of the distinct prime numbers
The prime factorization of 21004761 is 3 × 7001587.
Since it has a total of 2 prime factors.
9 , 4 , 33 , 16 , 339 , 197 , 5996 , 8439 , 44026 , 72605 , 615625 , 904636 , 1133513 , 828035 , 5150258 , 83651142 , 543778791 , 899391069 , 8531122315 , 3012200503
n×2
42009522
n×3
63014283
n×4
84019044
n×5
105023805
n÷2
10502380.5
n÷3
7001587
n÷3
5251190.25
n÷5
4200952.2
n2
441199984667121
n3
9.2673002311365E+21
n4
1.9465742647027E+29
n5
4.088732719883E+36
2 √n
4583.0951332042
3 √n
275.91326564681
4 √n
67.698560791232
5 √n
29.138255617831
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
-21004760
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 21004761 can be divided by 4 positive divisors.
The sum of these divisors (counting 21004761) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001000000111011001
3
Ternary
1110112011010010
4
Quaternary
1100020013121
5
Quinary
20334123021
6
Senary
2030112133
8
Octal
120100731
10
Decimal
21004761
12
Duodecimal
704b649
16
Hexadecimal
14081d9
20
Vigesimal
6b5bi1
36
Base36
ci7dl
md5
90869c80b48e45cd0819eddd4ef6c4d7
sha1
b9bb3501fc1ebeb3d5926ed5f788700f6fdf70ba
sha256
7953c0cab7f83dcfe6790edf20a1cc07647bbb8605dd105c9fd67e161b5763ba
sha512
6df222ab34bda155d614c008e8d23fd5381574a73974eb260995ddd977251918499eba38c432f0e7804493c10becc3b26dd20c2016726b602e981f539279950f
ripemd-160
f39f626cdefdd9ef4607a0444c51990ec531593a
Diameter
42009522
Circumference
131976805.69602
Area
1.3860706305942E+15
Volume
3.8818776432999E+22
Surface area
5.5442825223766E+15
Circumference
131976805.69602
Perimeter
84019044
Area
441199984667121
Diagonal
29705217.880605
Surface area
2647199908002726
Volume
9.2673002311365E+21
Space diagonal
36381313.252841
Perimeter
63014283
Area
1.9104519743552E+14
Altitude
18190656.626421
Surface area
1.9104519743552E+14
Volume
1.0921618061214E+21
Height
9901739.2935352