20307989 is an odd 8-digits composite number following 20307988
and preceding 20307990 . In scientific notation, it is written as 2.0307989 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 18681840 positive integers (up to 20307989) that are relatively prime to 20307989.
20307989 has 8 divisors, whose sum is 21944832
The reverse of 20307989 is 98970302
Previous prime number is 311
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million three hundred seven thousand nine hundred eighty-nine
Scientific notation
2.0307989 × 10^7
Engineering notation
2.0307989 × 10^6
Prime Factorization
13 × 311 × 5023
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20307989
Product of the distinct prime numbers
The prime factorization of 20307989 is 13 × 311 × 5023.
Since it has a total of 3 prime factors.
9 , 2 , 69 , 32 , 506 , 366 , 7131 , 9680 , 27474 , 45198 , 967608 , 187994 , 6738650 , 5175922 , 99091380 , 16277989 , 435632753 , 493396367 , 5752823812 , 7734250293
n×2
40615978
n×3
60923967
n×4
81231956
n×5
101539945
n÷2
10153994.5
n÷3
6769329.6666667
n÷3
5076997.25
n÷5
4061597.8
n2
412414417224121
n3
8.3753074484289E+21
n4
1.7008565153431E+29
n5
3.4540975404166E+36
2 √n
4506.4386160249
3 √n
272.82802122561
4 √n
67.130012781355
5 √n
28.942322860298
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
-20307988
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 20307989 can be divided by 8 positive divisors.
The sum of these divisors (counting 20307989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101011110000000010101
3
Ternary
1102012202022202
4
Quaternary
1031132000111
5
Quinary
20144323424
6
Senary
2003134245
8
Octal
115360025
10
Decimal
20307989
12
Duodecimal
6974385
16
Hexadecimal
135e015
20
Vigesimal
66i9j9
36
Base36
c39qt
md5
7551e158b03323df8a03d379a7f8ef66
sha1
cb0ef8cdab63a6abdc06da4fc2adf82a80268987
sha256
6d94d1601b67afc18fbc41292016081baf31d1004f4c650601447e67d1b2bee8
sha512
677ca662c077ba6be206b5b98ed0c1655442e85beb97eef2a9aa15712196d95f8c723e5f78658e87934b4771635d1ef89b80b422960eb9ffc0580171e851af09
ripemd-160
6ad5dd52fa595868958e5d695c91e41865dfe55f
Diameter
40615978
Circumference
127598858.10316
Area
1.2956381033858E+15
Volume
3.5082405802053E+22
Surface area
5.1825524135433E+15
Circumference
127598858.10316
Perimeter
81231956
Area
412414417224121
Diagonal
28719833.468324
Surface area
2474486503344726
Volume
8.3753074484289E+21
Space diagonal
35174468.74755
Perimeter
60923967
Area
1.7858068110152E+14
Altitude
17587234.373775
Surface area
1.7858068110152E+14
Volume
9.8703944855104E+20
Height
9573277.8227745