20007989 is an odd 8-digits composite number following 20007988
and preceding 20007990 . In scientific notation, it is written as 2.0007989 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 19362540 positive integers (up to 20007989) that are relatively prime to 20007989.
20007989 has 4 divisors, whose sum is 20653440
The reverse of 20007989 is 98970002
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million seven thousand nine hundred eighty-nine
Scientific notation
2.0007989 × 10^7
Engineering notation
2.0007989 × 10^6
Prime Factorization
31 × 645419
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20007989
Product of the distinct prime numbers
The prime factorization of 20007989 is 31 × 645419.
Since it has a total of 2 prime factors.
1 , 3 , 61 , 25 , 519 , 39 , 222 , 5304 , 31777 , 89119 , 750504 , 103670 , 4718573 , 3779559 , 58694555 , 2087807 , 836821706 , 300705562 , 812481424 , 4055864758
n×2
40015978
n×3
60023967
n×4
80031956
n×5
100039945
n÷2
10003994.5
n÷3
6669329.6666667
n÷3
5001997.25
n÷5
4001597.8
n2
400319623824121
n3
8.0095906299572E+21
n4
1.6025580121869E+29
n5
3.2063963079697E+36
2 √n
4473.0290631741
3 √n
271.47789931875
4 √n
66.880707705392
5 √n
28.856302895826
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
-20007988
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 20007989 can be divided by 4 positive divisors.
The sum of these divisors (counting 20007989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010100110000110101
3
Ternary
1101122111210122
4
Quaternary
1030110300311
5
Quinary
20110223424
6
Senary
1552501325
8
Octal
114246065
10
Decimal
20007989
12
Duodecimal
684a845
16
Hexadecimal
1314c35
20
Vigesimal
650jj9
36
Base36
bwu9h
md5
10cce8ec7abea4f89a8f50c168c3a327
sha1
b6691d37b9794970572c7ef7c789d90543df5546
sha256
a49c33ace3526361d240303a4aaa856b12de889fe664356a83b14d7d8032903b
sha512
e78d6c2baa5295482bdd1cc919360cacd15a78ac4d248c80e76feb6d44f1a13a5b58f078b4a83afd5bae7abcb6c45c04e655c9c777fb95577f9958b00c57eec4
ripemd-160
97459e04d2fc2e07c8aca7b4f22b4668b340a87d
Diameter
40015978
Circumference
125713902.51101
Area
1.2576411892937E+15
Volume
3.3550494775113E+22
Surface area
5.0305647571748E+15
Circumference
125713902.51101
Perimeter
80031956
Area
400319623824121
Diagonal
28295569.399612
Surface area
2401917742944726
Volume
8.0095906299572E+21
Space diagonal
34654853.505279
Perimeter
60023967
Area
1.7334348193256E+14
Altitude
17327426.75264
Surface area
1.7334348193256E+14
Volume
9.4393930816182E+20
Height
9431856.4665372