21490747 is an odd 8-digits composite number following 21490746
and preceding 21490748 . In scientific notation, it is written as 2.1490747 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 20793600 positive integers (up to 21490747) that are relatively prime to 21490747.
21490747 has 8 divisors, whose sum is 22194432
The reverse of 21490747 is 74709412
Previous prime number is 191
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million four hundred ninety thousand seven hundred forty-seven
Scientific notation
2.1490747 × 10^7
Engineering notation
2.1490747 × 10^6
Prime Factorization
37 × 191 × 3041
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21490747
Product of the distinct prime numbers
The prime factorization of 21490747 is 37 × 191 × 3041.
Since it has a total of 3 prime factors.
4 , 4 , 54 , 86 , 518 , 741 , 9135 , 1470 , 57420 , 27798 , 664473 , 470667 , 9934255 , 5362168 , 43796731 , 45384815 , 124372134 , 393895120 , 2510776558 , 1639814933
n×2
42981494
n×3
64472241
n×4
85962988
n×5
107453735
n÷2
10745373.5
n÷3
7163582.3333333
n÷3
5372686.75
n÷5
4298149.4
n2
461852206618009
n3
9.9255489238194E+21
n4
2.1330746075792E+29
n5
4.584136672361E+36
2 √n
4635.8113637205
3 √n
278.02499214612
4 √n
68.086792872924
5 √n
29.27185884949
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21490746
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21490747 can be divided by 8 positive divisors.
The sum of these divisors (counting 21490747) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110110000111011
3
Ternary
1111102211202121
4
Quaternary
1101332300323
5
Quinary
21000200442
6
Senary
2044342111
8
Octal
121766073
10
Decimal
21490747
12
Duodecimal
7244937
16
Hexadecimal
147ec3b
20
Vigesimal
6e66h7
36
Base36
csmd7
md5
e7478a1e0f71c8df6cdd1723d519bea8
sha1
3947eb9cf73d33037dd7659b9214426fb31791c9
sha256
0cc5a724c60c8f20c230db8989d3aa5f328b736cab9460f9547d9d94216dcdc8
sha512
38897f58f92eb9fa2927e171a471e9d0e5530ab9a2bcbaf0d0e2874b413141e844d1fbf5b6dd8fe3947304205b7d603db9ea527449f4aa8c657754afbd9f2a61
ripemd-160
315fcc429d1b94e5e45a853f3d1e88a1a740ec53
Diameter
42981494
Circumference
135030345.79071
Area
1.4509514993554E+15
Volume
4.1576042109223E+22
Surface area
5.8038059974215E+15
Circumference
135030345.79071
Perimeter
85962988
Area
461852206618009
Diagonal
30392505.872929
Surface area
2771113239708054
Volume
9.9255489238194E+21
Space diagonal
37223065.696608
Perimeter
64472241
Area
1.9998787186255E+14
Altitude
18611532.848304
Surface area
1.9998787186255E+14
Volume
1.1697371585053E+21
Height
10130835.290976