20165978 is an even 8-digits composite number following 20165977
and preceding 20165979 . In scientific notation, it is written as 2.0165978 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 8134080 positive integers (up to 20165978) that are relatively prime to 20165978.
20165978 has 16 divisors, whose sum is 36604224
The reverse of 20165978 is 87956102
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million one hundred sixty-five thousand nine hundred seventy-eight
Scientific notation
2.0165978 × 10^7
Engineering notation
2.0165978 × 10^6
Prime Factorization
2 × 7 × 17 × 84731
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20165978
Product of the distinct prime numbers
The prime factorization of 20165978 is 2 × 7 × 17 × 84731.
Since it has a total of 4 prime factors.
4 , 5 , 65 , 9 , 561 , 5 , 4626 , 8073 , 92253 , 36943 , 783656 , 21099 , 3896784 , 7382730 , 73382546 , 96910093 , 223416466 , 953923639 , 1073251344 , 220391879
n×2
40331956
n×3
60497934
n×4
80663912
n×5
100829890
n÷2
10082989
n÷3
6721992.6666667
n÷3
5041494.5
n÷5
4033195.6
n2
406666668696484
n3
8.2008310942666E+21
n4
1.653777794287E+29
n5
3.3350046616479E+36
2 √n
4490.6545179962
3 √n
272.19058334377
4 √n
67.012346011733
5 √n
28.901731216169
1 , 2 , 7 , 14 , 17 , 34 , 119 , 238 , 84731 , 169462 , 593117 , 1186234 , 1440427 , 2880854 , 10082989 , 20165978
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20165977
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20165978 can be divided by 16 positive divisors.
The sum of these divisors (counting 20165978) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111011010101011010
3
Ternary
1101221112112002
4
Quaternary
1030323111122
5
Quinary
20130302403
6
Senary
2000121002
8
Octal
114732532
10
Decimal
20165978
12
Duodecimal
6906162
16
Hexadecimal
133b55a
20
Vigesimal
660eii
36
Base36
c0862
md5
9b2be0de03267dae71538b82a4274c03
sha1
ace255bd63c291068d3612f1cb79819eb90fe51b
sha256
489c025527c6674ef7190545bf489a38ec087b53685b57432e69811ed977e712
sha512
432ee7cc5445494b8e75d64713a04ab6773c5a4718e19472a7f3190ed79eaa6803e49a2759872bc924c48058cfd500621eb2451d33383ae8e6e6f20b8f43e20a
ripemd-160
a164de1c59141d5d76d59c60fa08251b745494fa
Diameter
40331956
Circumference
126706576.67451
Area
1.2775810188367E+15
Volume
3.4351560958772E+22
Surface area
5.1103240753468E+15
Circumference
126706576.67451
Perimeter
80663912
Area
406666668696484
Diagonal
28518999.586117
Surface area
2440000012178904
Volume
8.2008310942666E+21
Space diagonal
34928498.480316
Perimeter
60497934
Area
1.7609183298177E+14
Altitude
17464249.240158
Surface area
1.7609183298177E+14
Volume
9.6647721302023E+20
Height
9506333.1953725