21492237 is an odd 8-digits composite number following 21492236
and preceding 21492238 . In scientific notation, it is written as 2.1492237 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13225680 positive integers (up to 21492237) that are relatively prime to 21492237.
21492237 has 8 divisors, whose sum is 23739520
The reverse of 21492237 is 73229412
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million four hundred ninety-two thousand two hundred thirty-seven
Scientific notation
2.1492237 × 10^7
Engineering notation
2.1492237 × 10^6
Prime Factorization
39 × 13 × 42391
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21492237
Product of the distinct prime numbers
The prime factorization of 21492237 is 39 × 13 × 42391.
Since it has a total of 3 prime factors.
8 , 7 , 46 , 96 , 297 , 662 , 3141 , 5693 , 39973 , 46364 , 113300 , 509270 , 2939536 , 5796017 , 88498481 , 79590983 , 214238615 , 405776781 , 9187229375 , 1283715646
n×2
42984474
n×3
64476711
n×4
85968948
n×5
107461185
n÷2
10746118.5
n÷3
7164079
n÷3
5373059.25
n÷5
4298447.4
n2
461916251264169
n3
9.9276135463211E+21
n4
2.1336662318194E+29
n5
4.585726033316E+36
2 √n
4635.9720663524
3 √n
278.03141735577
4 √n
68.087972993418
5 √n
29.272264734499
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
-21492236
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 21492237 can be divided by 8 positive divisors.
The sum of these divisors (counting 21492237) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111001000001101
3
Ternary
1111102220210210
4
Quaternary
1101333020031
5
Quinary
21000222422
6
Senary
2044353033
8
Octal
121771015
10
Decimal
21492237
12
Duodecimal
7245779
16
Hexadecimal
147f20d
20
Vigesimal
6e6abh
36
Base36
csnil
md5
c1992f867ab0b7a222454a383ac25e84
sha1
dc36e85116eb2b31152a53095ebb5ade03b010ec
sha256
453b0f512ded536f35428ca4317f63477719e23169efa3467578a90acfdd40fb
sha512
db55483fc51a8a23c3d64d0c0264d71bfa0567584f661019b4a839bf3c5e28b23f729b8555781738806f5030b0ed3fa84a2b9088dcf0494e690ad58acbc36fb4
ripemd-160
9a55c95a32b7c9d56047fdec187e03527ece7553
Diameter
42984474
Circumference
135039707.73682
Area
1.4511527015453E+15
Volume
4.1584690379734E+22
Surface area
5.804610806181E+15
Circumference
135039707.73682
Perimeter
85968948
Area
461916251264169
Diagonal
30394613.051137
Surface area
2771497507585014
Volume
9.9276135463211E+21
Space diagonal
37225646.452312
Perimeter
64476711
Area
2.0001560400782E+14
Altitude
18612823.226156
Surface area
2.0001560400782E+14
Volume
1.1699804766005E+21
Height
10131537.683712