21130145 is an odd 8-digits composite number following 21130144
and preceding 21130146 . In scientific notation, it is written as 2.1130145 × 10^7.
The sum of its digits is 17. It has a total of 3 prime factors and 8 positive divisors.
There are 16447104 positive integers (up to 21130145) that are relatively prime to 21130145.
21130145 has 8 divisors, whose sum is 26041704
The reverse of 21130145 is 54103112
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million one hundred thirty thousand one hundred forty-five
Scientific notation
2.1130145 × 10^7
Engineering notation
2.1130145 × 10^6
Prime Factorization
5 × 37 × 114217
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21130145
Product of the distinct prime numbers
The prime factorization of 21130145 is 5 × 37 × 114217.
Since it has a total of 3 prime factors.
4 , 7 , 14 , 85 , 509 , 541 , 2530 , 5811 , 89712 , 2604 , 749706 , 524996 , 9584124 , 9891285 , 32883420 , 60626169 , 640241062 , 499744531 , 1120765785 , 7211606320
n×2
42260290
n×3
63390435
n×4
84520580
n×5
105650725
n÷2
10565072.5
n÷3
7043381.6666667
n÷3
5282536.25
n÷5
4226029
n2
446483027721025
n3
9.4342511157843E+21
n4
1.9934709404293E+29
n5
4.2122330024558E+36
2 √n
4596.7537458515
3 √n
276.46118110794
4 √n
67.799363904476
5 √n
29.172959927687
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
-21130144
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 21130145 can be divided by 8 positive divisors.
The sum of these divisors (counting 21130145) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100110101110100001
3
Ternary
1110202112002222
4
Quaternary
1100212232201
5
Quinary
20402131040
6
Senary
2032520425
8
Octal
120465641
10
Decimal
21130145
12
Duodecimal
70b0115
16
Hexadecimal
1426ba1
20
Vigesimal
6c1575
36
Base36
ckw4h
md5
c82f2548f5ea6c5e9c521276944ec5a9
sha1
20477a996059440f18814ee848bd0dc6f97830da
sha256
b19de44ad40ca05e1952d0e4a7ab3e708782c4da21b2ea91cc0660949b91546c
sha512
f310991bd7fc4f4035ebdbe1c45a065d038ee27759302b47e4435f178fc8f10d91ecea07625af4e812f9a135b782b0e90b36a87148e8577e273024aafff3fd6f
ripemd-160
d7f92bcc63e6e91bb70d3bf27924f4cc099129c1
Diameter
42260290
Circumference
132764616.60257
Area
1.4026677998409E+15
Volume
3.9518098663292E+22
Surface area
5.6106711993636E+15
Circumference
132764616.60257
Perimeter
84520580
Area
446483027721025
Diagonal
29882537.63391
Surface area
2678898166326150
Volume
9.4342511157843E+21
Space diagonal
36598484.711297
Perimeter
63390435
Area
1.933328221825E+14
Altitude
18299242.355649
Surface area
1.933328221825E+14
Volume
1.1118371565646E+21
Height
9960845.87797