21239999 is an odd 8-digits composite number following 21239998
and preceding 21240000 . In scientific notation, it is written as 2.1239999 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 19238040 positive integers (up to 21239999) that are relatively prime to 21239999.
21239999 has 8 divisors, whose sum is 23256192
The reverse of 21239999 is 99993212
Previous prime number is 283
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-one million two hundred thirty-nine thousand nine hundred ninety-nine
Scientific notation
2.1239999 × 10^7
Engineering notation
2.1239999 × 10^6
Prime Factorization
11 × 283 × 6823
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21239999
Product of the distinct prime numbers
The prime factorization of 21239999 is 11 × 283 × 6823.
Since it has a total of 3 prime factors.
10 , 4 , 18 , 85 , 11 , 384 , 893 , 6820 , 4665 , 67939 , 381951 , 293520 , 7908629 , 1541187 , 474514 , 78451945 , 397909219 , 211329583 , 6569726367 , 1720281600
n×2
42479998
n×3
63719997
n×4
84959996
n×5
106199995
n÷2
10619999.5
n÷3
7079999.6666667
n÷3
5309999.75
n÷5
4247999.8
n2
451137557520001
n3
9.5821612705873E+21
n4
2.0352509580511E+29
n5
4.3228728313755E+36
2 √n
4608.6873402304
3 √n
276.93945337427
4 √n
67.887313544067
5 √n
29.203230638276
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
-21239998
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 21239999 can be divided by 8 positive divisors.
The sum of these divisors (counting 21239999) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001000001100010111111
3
Ternary
1110222002210122
4
Quaternary
1101001202333
5
Quinary
20414134444
6
Senary
2035125155
8
Octal
121014277
10
Decimal
21239999
12
Duodecimal
71437bb
16
Hexadecimal
14418bf
20
Vigesimal
6cejjj
36
Base36
cn8vz
md5
3ead8c746fcb4d9ee5ac3ebfcc7bf284
sha1
ed4f372a71f3a179057aef6e63303795b90ecbc6
sha256
1a18dd9b23ebb391459aaff84a4c773d1d9959e820bc41d84e04ed3b951c6f9c
sha512
9bb2147881216ec32f615149c90203dd139fc143090a6007b63cee7908ca1561cc59b486992279e43cf01d7947b5108f17509139f0097c9482073e708071a293
ripemd-160
b3394158d7a36c6bd52977caec600987d8b71a56
Diameter
42479998
Circumference
133454849.64131
Area
1.4172904364633E+15
Volume
4.0137663270919E+22
Surface area
5.6691617458531E+15
Circumference
133454849.64131
Perimeter
84959996
Area
451137557520001
Diagonal
30037894.650591
Surface area
2706825345120006
Volume
9.5821612705873E+21
Space diagonal
36788757.420712
Perimeter
63719997
Area
1.9534829270679E+14
Altitude
18394378.710356
Surface area
1.9534829270679E+14
Volume
1.1292685354759E+21
Height
10012631.550197