20130978 is an even 8-digits composite number following 20130977
and preceding 20130979 . In scientific notation, it is written as 2.0130978 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 5751696 positive integers (up to 20130978) that are relatively prime to 20130978.
20130978 has 8 divisors, whose sum is 31634460
The reverse of 20130978 is 87903102
Previous prime number is 21
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred thirty thousand nine hundred seventy-eight
Scientific notation
2.0130978 × 10^7
Engineering notation
2.0130978 × 10^6
Prime Factorization
2 × 21 × 479309
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20130978
Product of the distinct prime numbers
The prime factorization of 20130978 is 2 × 21 × 479309.
Since it has a total of 3 prime factors.
7 , 10 , 45 , 18 , 939 , 775 , 8102 , 3495 , 58903 , 94107 , 444467 , 643440 , 3189238 , 6059592 , 39303765 , 9097086 , 363773442 , 577744767 , 3687826730 , 6508957955
n×2
40261956
n×3
60392934
n×4
80523912
n×5
100654890
n÷2
10065489
n÷3
6710326
n÷3
5032744.5
n÷5
4026195.6
n2
405256275236484
n3
8.1582051611476E+21
n4
1.6423264861855E+29
n5
3.3061638362217E+36
2 √n
4486.7558435912
3 √n
272.03302114962
4 √n
66.983250470481
5 √n
28.891691895595
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
-20130977
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 20130978 can be divided by 8 positive divisors.
The sum of these divisors (counting 20130978) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110010110010100010
3
Ternary
1101212202111210
4
Quaternary
1030302302202
5
Quinary
20123142403
6
Senary
1555250550
8
Octal
114626242
10
Decimal
20130978
12
Duodecimal
68a9a56
16
Hexadecimal
1332ca2
20
Vigesimal
65g78i
36
Base36
bzh5u
md5
8e91524461415bf430d41148f9910410
sha1
0f6d33ad65d946ef184519f0c1c8f8f8f8c7d590
sha256
d15661add61e4170a0bc9cbc4934babfe8f4500ed60ceb16c7e0e3caba5d1c59
sha512
d2d5063e37724f7f8a8b66bddb2d9462cc2fce01909c9eeb371f6cd2bbc70f44d99d356fe732c8460f4f205d8d4ddf778ba5d36a3f8d43847b0d14f664dea556
ripemd-160
b246f3ddca86bcfe032780f966985d24f09af59f
Diameter
40261956
Circumference
126486665.18876
Area
1.2731501371041E+15
Volume
3.4173009867653E+22
Surface area
5.0926005484164E+15
Circumference
126486665.18876
Perimeter
80523912
Area
405256275236484
Diagonal
28469502.111434
Surface area
2431537651418904
Volume
8.1582051611476E+21
Space diagonal
34867876.702051
Perimeter
60392934
Area
1.7548111469893E+14
Altitude
17433938.351026
Surface area
1.7548111469893E+14
Volume
9.6145369862643E+20
Height
9489834.0371448