21490899 is an odd 8-digits composite number following 21490898
and preceding 21490900 . In scientific notation, it is written as 2.1490899 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 14327264 positive integers (up to 21490899) that are relatively prime to 21490899.
21490899 has 4 divisors, whose sum is 28654536
The reverse of 21490899 is 99809412
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty-one million four hundred ninety thousand eight hundred ninety-nine
Scientific notation
2.1490899 × 10^7
Engineering notation
2.1490899 × 10^6
Prime Factorization
3 × 7163633
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21490899
Product of the distinct prime numbers
The prime factorization of 21490899 is 3 × 7163633.
Since it has a total of 2 prime factors.
1 , 7 , 78 , 5 , 467 , 595 , 4133 , 1126 , 38142 , 29113 , 372982 , 814801 , 7645933 , 9583084 , 34841191 , 26600855 , 937453427 , 199510560 , 9571949051 , 1371805955
n×2
42981798
n×3
64472697
n×4
85963596
n×5
107454495
n÷2
10745449.5
n÷3
7163633
n÷3
5372724.75
n÷5
4298179.8
n2
461858739828201
n3
9.9257595299151E+21
n4
2.1331349555569E+29
n5
4.5842987883244E+36
2 √n
4635.8277578012
3 √n
278.02564761735
4 √n
68.086913263866
5 √n
29.27190025624
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
-21490898
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 21490899 can be divided by 4 positive divisors.
The sum of these divisors (counting 21490899) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111110110011010011
3
Ternary
1111102211222020
4
Quaternary
1101332303103
5
Quinary
21000202044
6
Senary
2044342523
8
Octal
121766323
10
Decimal
21490899
12
Duodecimal
7244a43
16
Hexadecimal
147ecd3
20
Vigesimal
6e674j
36
Base36
csmhf
md5
92a17fb3ad9594ae46ae1c036e02ca21
sha1
96b51811c8a07c6b8923baa4f0517567f0889d2b
sha256
829901a7dc0967e09551a37c59fcc4c985948826a93ab393666488c55d610ab1
sha512
b3c69ef1b327f0764bdba66b82085e53b4accab788b39af4bbe1fef79784fd3d8c216cee6601da7b5f525805b02a450409efc73fc7670654af1632346b96d998
ripemd-160
595158cf7eb389ac3b993d89eba7d58f7a60bb79
Diameter
42981798
Circumference
135031300.83488
Area
1.4509720240405E+15
Volume
4.1576924293974E+22
Surface area
5.8038880961621E+15
Circumference
135031300.83488
Perimeter
85963596
Area
461858739828201
Diagonal
30392720.83339
Surface area
2771152438969206
Volume
9.9257595299151E+21
Space diagonal
37223328.968331
Perimeter
64472697
Area
1.9999070082554E+14
Altitude
18611664.484166
Surface area
1.9999070082554E+14
Volume
1.1697619786717E+21
Height
10130906.944463