20120989 is an odd 8-digits composite number following 20120988
and preceding 20120990 . In scientific notation, it is written as 2.0120989 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 17157840 positive integers (up to 20120989) that are relatively prime to 20120989.
20120989 has 8 divisors, whose sum is 23113728
The reverse of 20120989 is 98902102
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred twenty thousand nine hundred eighty-nine
Scientific notation
2.0120989 × 10^7
Engineering notation
2.0120989 × 10^6
Prime Factorization
7 × 197 × 14591
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20120989
Product of the distinct prime numbers
The prime factorization of 20120989 is 7 × 197 × 14591.
Since it has a total of 3 prime factors.
2 , 9 , 14 , 7 , 247 , 267 , 9567 , 2856 , 71629 , 26987 , 181175 , 101437 , 331092 , 6287969 , 86869878 , 39180999 , 577932733 , 338072691 , 4732899865 , 3792052327
n×2
40241978
n×3
60362967
n×4
80483956
n×5
100604945
n÷2
10060494.5
n÷3
6706996.3333333
n÷3
5030247.25
n÷5
4024197.8
n2
404854198338121
n3
8.1460668713652E+21
n4
1.63906921912E+29
n5
3.2979693728153E+36
2 √n
4485.6425403726
3 √n
271.98801940454
4 √n
66.974939644411
5 √n
28.888824112335
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
-20120988
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 20120989 can be divided by 8 positive divisors.
The sum of these divisors (counting 20120989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000010110011101
3
Ternary
1101212020210211
4
Quaternary
1030300112131
5
Quinary
20122332424
6
Senary
1555132421
8
Octal
114602635
10
Decimal
20120989
12
Duodecimal
68a4111
16
Hexadecimal
133059d
20
Vigesimal
65f299
36
Base36
bz9gd
md5
95568690ffae6e6899a29bfe70a9c6bf
sha1
d321ee33cbdee2e3aa9fab5ff5a18821836a20de
sha256
9d336f6cb4bb7f3a2306228b7e233dffccc90f071dc0ea86ee048ba823247b33
sha512
cf5ddee2b8925f398418d26bfd6cdaee627b91ef8b0826d9ae872ddc1ec03e36d402cadaaab1fbbeff0a2dde182027c467058b07df70d539ea7e626fb4755254
ripemd-160
34edd6ed13d26d5d19621ea2058f6eca27f18337
Diameter
40241978
Circumference
126423902.45072
Area
1.271886975274E+15
Volume
3.4122165118309E+22
Surface area
5.0875479010961E+15
Circumference
126423902.45072
Perimeter
80483956
Area
404854198338121
Diagonal
28455375.53216
Surface area
2429125190028726
Volume
8.1460668713652E+21
Space diagonal
34850575.246534
Perimeter
60362967
Area
1.753070102948E+14
Altitude
17425287.623267
Surface area
1.753070102948E+14
Volume
9.600231874569E+20
Height
9485125.1773866