21131239 is an odd 8-digits composite number following 21131238
and preceding 21131240 . In scientific notation, it is written as 2.1131239 × 10^7.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 21090160 positive integers (up to 21131239) that are relatively prime to 21131239.
21131239 has 4 divisors, whose sum is 21172320
The reverse of 21131239 is 93213112
Previous prime number is 521
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million one hundred thirty-one thousand two hundred thirty-nine
Scientific notation
2.1131239 × 10^7
Engineering notation
2.1131239 × 10^6
Prime Factorization
521 × 40559
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21131239
Product of the distinct prime numbers
The prime factorization of 21131239 is 521 × 40559.
Since it has a total of 2 prime factors.
10 , 7 , 40 , 67 , 640 , 341 , 8702 , 7207 , 70178 , 35299 , 350947 , 732040 , 9624392 , 5288824 , 92648819 , 75521412 , 884139081 , 800579969 , 4800750513 , 7724092018
n×2
42262478
n×3
63393717
n×4
84524956
n×5
105656195
n÷2
10565619.5
n÷3
7043746.3333333
n÷3
5282809.75
n÷5
4226247.8
n2
446529261675121
n3
9.4357165489505E+21
n4
1.9938838153213E+29
n5
4.2133235439786E+36
2 √n
4596.8727413319
3 √n
276.465952227
4 √n
67.80024145482
5 √n
29.173262003771
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
-21131238
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 21131239 can be divided by 4 positive divisors.
The sum of these divisors (counting 21131239) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100110111111100111
3
Ternary
1110202120121111
4
Quaternary
1100212333213
5
Quinary
20402144424
6
Senary
2032525451
8
Octal
120467747
10
Decimal
21131239
12
Duodecimal
70b0887
16
Hexadecimal
1426fe7
20
Vigesimal
6c181j
36
Base36
ckwyv
md5
194e72a862016966065f98602d9f9ada
sha1
8082a004696a9ba975869cfab883ee38fb48a9ff
sha256
9b42b6893a6fab702f42670ebb816e963e5e8d61ed094975dda652b6d7a7c265
sha512
c1cde31c7af086c2633d6b77bb040343b8abd7b02bc988e52ce7545becd08b2019c411270c8606950086cb8a97364bb1a1e239631e71062704bd2ab74ac583c8
ripemd-160
99bfbbeef627be33decb162ce263c3b75c94e4a4
Diameter
42262478
Circumference
132771490.4073
Area
1.4028130480914E+15
Volume
3.9524237055385E+22
Surface area
5.6112521923657E+15
Circumference
132771490.4073
Perimeter
84524956
Area
446529261675121
Diagonal
29884084.783547
Surface area
2679175570050726
Volume
9.4357165489505E+21
Space diagonal
36600379.574881
Perimeter
63393717
Area
1.9335284207188E+14
Altitude
18300189.78744
Surface area
1.9335284207188E+14
Volume
1.1120098595195E+21
Height
9961361.5945158