21491044 is an even 8-digits composite number following 21491043
and preceding 21491045 . In scientific notation, it is written as 2.1491044 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 6 positive divisors.
There are 10745520 positive integers (up to 21491044) that are relatively prime to 21491044.
21491044 has 6 divisors, whose sum is 37609334
The reverse of 21491044 is 44019412
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million four hundred ninety-one thousand forty-four
Scientific notation
2.1491044 × 10^7
Engineering notation
2.1491044 × 10^6
Prime Factorization
2 × 2 × 5372761
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10745522
Product of the distinct prime numbers
The prime factorization of 21491044 is 2 × 2 × 5372761.
Since it has a total of 3 prime factors.
9 , 5 , 7 , 22 , 966 , 226 , 9467 , 9372 , 29969 , 48859 , 536419 , 354709 , 951730 , 6878488 , 5947239 , 57518595 , 676520032 , 47173022 , 629357923 , 4387080103
n×2
42982088
n×3
64473132
n×4
85964176
n×5
107455220
n÷2
10745522
n÷3
7163681.3333333
n÷3
5372761
n÷5
4298208.8
n2
461864972209936
n3
9.9259604398225E+21
n4
2.1331925255448E+29
n5
4.5844534426955E+36
2 √n
4635.8433968373
3 √n
278.02627289952
4 √n
68.087028109893
5 √n
29.271939755882
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21491043
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21491044 can be divided by 6 positive divisors.
The sum of these divisors (counting 21491044) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010001111110110101100100
3
Ternary
1111102212011121
4
Quaternary
1101332311210
5
Quinary
21000203134
6
Senary
2044343324
8
Octal
121766544
10
Decimal
21491044
12
Duodecimal
7244b44
16
Hexadecimal
147ed64
20
Vigesimal
6e67c4
36
Base36
csmlg
md5
993c54f50a633396bc24edeb8570afa5
sha1
0dceb579e88f65b999ef00827e1fa8ed778aba6e
sha256
65a9fd555cb74184fc6a1c7058591f7ea217319849aa2a3b7e99418c19e42cc2
sha512
83538a3978423badaece7ea7f5a165a526baaabd17f03cb5df3c513535393381d67385e2da0a5f87b3ac138315b24edd29e5ca3762eb2f19c569a11ff36dd523
ripemd-160
f9d3ae4e7192951cda3317a123eeedda59152237
Diameter
42982088
Circumference
135032211.89675
Area
1.4509916036452E+15
Volume
4.1577765863426E+22
Surface area
5.8039664145808E+15
Circumference
135032211.89675
Perimeter
85964176
Area
461864972209936
Diagonal
30392925.894357
Surface area
2771189833259616
Volume
9.9259604398225E+21
Space diagonal
37223580.115698
Perimeter
64473132
Area
1.99993399526E+14
Altitude
18611790.057849
Surface area
1.99993399526E+14
Volume
1.1697856561313E+21
Height
10130975.298119