21000946 is an even 8-digits composite number following 21000945
and preceding 21000947 . In scientific notation, it is written as 2.1000946 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 10500472 positive integers (up to 21000946) that are relatively prime to 21000946.
21000946 has 4 divisors, whose sum is 31501422
The reverse of 21000946 is 64900012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million nine hundred forty-six
Scientific notation
2.1000946 × 10^7
Engineering notation
2.1000946 × 10^6
Prime Factorization
2 × 10500473
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21000946
Product of the distinct prime numbers
The prime factorization of 21000946 is 2 × 10500473.
Since it has a total of 2 prime factors.
2 , 1 , 55 , 30 , 41 , 488 , 1887 , 8082 , 67941 , 53995 , 476811 , 391225 , 991259 , 4623704 , 98643357 , 20336041 , 90419051 , 94647489 , 814404753 , 6046034422
n×2
42001892
n×3
63002838
n×4
84003784
n×5
105004730
n÷2
10500473
n÷3
7000315.3333333
n÷3
5250236.5
n÷5
4200189.2
n2
441039732894916
n3
9.2622516143806E+21
n4
1.9451604599202E+29
n5
4.0850209780119E+36
2 √n
4582.6789108555
3 √n
275.89656034142
4 √n
67.695486635783
5 √n
29.137197090938
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
-21000945
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 21000946 can be divided by 4 positive divisors.
The sum of these divisors (counting 21000946) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000111001011110010
3
Ternary
1110111221212211
4
Quaternary
1100013023302
5
Quinary
20334012241
6
Senary
2030042334
8
Octal
120071362
10
Decimal
21000946
12
Duodecimal
70493aa
16
Hexadecimal
14072f2
20
Vigesimal
6b5276
36
Base36
ci4fm
md5
7c9c2b68cecbe0dd07ad02736d3b701d
sha1
85348b8e5d607a84661601f482982671f75df380
sha256
0fbc67dc4ff7c842b92989c13a24b2d9ce46a37860913ab8186faf9f18320d1f
sha512
920926dc20d0ee49481bcfb0b13f946d959c480ca823f99a53b518dccd4dc90a5e15dca6aca8d85770c2d94c5d058729ff44b654c3bf125217667dab5ea37796
ripemd-160
8ab987692821bd8b94276d0d4820a249b91c47ed
Diameter
42001892
Circumference
131952835.34407
Area
1.3855671848039E+15
Volume
3.8797628836584E+22
Surface area
5.5422687392155E+15
Circumference
131952835.34407
Perimeter
84003784
Area
441039732894916
Diagonal
29699822.655865
Surface area
2646238397369496
Volume
9.2622516143806E+21
Space diagonal
36374705.47901
Perimeter
63002838
Area
1.9097580638265E+14
Altitude
18187352.739505
Surface area
1.9097580638265E+14
Volume
1.0915668209308E+21
Height
9899940.8852883