21490189 is an odd 8-digits composite number following 21490188
and preceding 21490190 . In scientific notation, it is written as 2.1490189 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 17784816 positive integers (up to 21490189) that are relatively prime to 21490189.
21490189 has 8 divisors, whose sum is 25407360
The reverse of 21490189 is 98109412
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million four hundred ninety thousand one hundred eighty-nine
Scientific notation
2.1490189 × 10^7
Engineering notation
2.1490189 × 10^6
Prime Factorization
29 × 7 × 105863
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21490189
Product of the distinct prime numbers
The prime factorization of 21490189 is 29 × 7 × 105863.
Since it has a total of 3 prime factors.
6 , 7 , 95 , 8 , 409 , 728 , 7345 , 9925 , 26141 , 80815 , 50066 , 593680 , 6799437 , 4307607 , 31815190 , 73979083 , 581148446 , 680855560 , 2688022191 , 123850067
n×2
42980378
n×3
64470567
n×4
85960756
n×5
107450945
n÷2
10745094.5
n÷3
7163396.3333333
n÷3
5372547.25
n÷5
4298037.8
n2
461828223255721
n3
9.9247758032996E+21
n4
2.1328530779554E+29
n5
4.5835415754492E+36
2 √n
4635.7511796903
3 √n
278.02258585023
4 √n
68.086350905966
5 √n
29.271706841122
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
-21490188
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 21490189 can be divided by 8 positive divisors.
The sum of these divisors (counting 21490189) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110101000001101
3
Ternary
1111102210222221
4
Quaternary
1101332220031
5
Quinary
21000141224
6
Senary
2044335341
8
Octal
121765015
10
Decimal
21490189
12
Duodecimal
7244551
16
Hexadecimal
147ea0d
20
Vigesimal
6e6599
36
Base36
cslxp
md5
c9152159f9c5c2bb62edcc980b54d85b
sha1
716c9d93681489dff881843c976156ebed667505
sha256
30151efa6ae53872cc3dd43fe5a9305edd6ccb577b0835b9359e44adbb24d9a8
sha512
df984f477c6bc9b8119088c960fe9c5f04bcc1030f70e75cc051945176c0c5b8ac70e2727711cd79c14cf0e3fbded1eb3b1fc8ac23187ca9ba7763b287a0f480
ripemd-160
6dd2bc0b8411a912d4760231c2186fcd8f5f8b15
Diameter
42980378
Circumference
135026839.77331
Area
1.4508761534006E+15
Volume
4.1572803669563E+22
Surface area
5.8035046136024E+15
Circumference
135026839.77331
Perimeter
85960756
Area
461828223255721
Diagonal
30391716.741761
Surface area
2770969339534326
Volume
9.9247758032996E+21
Space diagonal
37222099.212258
Perimeter
64470567
Area
1.9997748676204E+14
Altitude
18611049.606129
Surface area
1.9997748676204E+14
Volume
1.1696460453782E+21
Height
10130572.247254