21492689 is an odd 8-digits composite number following 21492688
and preceding 21492690 . In scientific notation, it is written as 2.1492689 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 21479280 positive integers (up to 21492689) that are relatively prime to 21492689.
21492689 has 4 divisors, whose sum is 21506100
The reverse of 21492689 is 98629412
Previous prime number is 1861
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million four hundred ninety-two thousand six hundred eighty-nine
Scientific notation
2.1492689 × 10^7
Engineering notation
2.1492689 × 10^6
Prime Factorization
1861 × 11549
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21492689
Product of the distinct prime numbers
The prime factorization of 21492689 is 1861 × 11549.
Since it has a total of 2 prime factors.
8 , 9 , 93 , 8 , 289 , 317 , 7410 , 4404 , 25981 , 63334 , 661725 , 970549 , 866062 , 673778 , 43939940 , 5807299 , 600960965 , 594465574 , 9111940142 , 7122254993
n×2
42985378
n×3
64478067
n×4
85970756
n×5
107463445
n÷2
10746344.5
n÷3
7164229.6666667
n÷3
5373172.25
n÷5
4298537.8
n2
461935680450721
n3
9.9282399179307E+21
n4
2.1338457287347E+29
n5
4.5862082621673E+36
2 √n
4636.0208153113
3 √n
278.03336642106
4 √n
68.088330977572
5 √n
29.272387857581
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
-21492688
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 21492689 can be divided by 4 positive divisors.
The sum of these divisors (counting 21492689) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111111001111010001
3
Ternary
1111102221102112
4
Quaternary
1101333033101
5
Quinary
21000231224
6
Senary
2044355105
8
Octal
121771721
10
Decimal
21492689
12
Duodecimal
7245a95
16
Hexadecimal
147f3d1
20
Vigesimal
6e6be9
36
Base36
csnv5
md5
316f4212adb7d3ab5d412b2b555210b3
sha1
48afc80361c3b79dd3d8f1f5ade41592c388ae2a
sha256
783f5f23601a55ad58f0875066fdd2afd3ce9add83526be9be824a6349f95e08
sha512
d7522a174908dfdd8f7e950b497246f780fcc1605e199be69956529f70c867eb5fd8e3baf078d3685b3dc12b9b8492956a821dea8fe0da55b24c1b9a0bc32296
ripemd-160
82a4da3ad721f0387f0deb89d95476eac4782fa1
Diameter
42985378
Circumference
135042547.73658
Area
1.451213740135E+15
Volume
4.1587314118997E+22
Surface area
5.8048549605399E+15
Circumference
135042547.73658
Perimeter
85970756
Area
461935680450721
Diagonal
30395252.275667
Surface area
2771614082704326
Volume
9.9282399179307E+21
Space diagonal
37226429.339277
Perimeter
64478067
Area
2.0002401709239E+14
Altitude
18613214.669638
Surface area
2.0002401709239E+14
Volume
1.1700542952026E+21
Height
10131750.758556