20456989 is an odd 8-digits composite number following 20456988
and preceding 20456990 . In scientific notation, it is written as 2.0456989 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 17426016 positive integers (up to 20456989) that are relatively prime to 20456989.
20456989 has 8 divisors, whose sum is 23524160
The reverse of 20456989 is 98965402
Previous prime number is 163
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million four hundred fifty-six thousand nine hundred eighty-nine
Scientific notation
2.0456989 × 10^7
Engineering notation
2.0456989 × 10^6
Prime Factorization
7 × 163 × 17929
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20456989
Product of the distinct prime numbers
The prime factorization of 20456989 is 7 × 163 × 17929.
Since it has a total of 3 prime factors.
1 , 1 , 29 , 12 , 999 , 786 , 7985 , 1609 , 90218 , 60259 , 240540 , 146593 , 1271388 , 2742376 , 93584559 , 62505717 , 440713129 , 921678130 , 4716813415 , 6532329079
n×2
40913978
n×3
61370967
n×4
81827956
n×5
102284945
n÷2
10228494.5
n÷3
6818996.3333333
n÷3
5114247.25
n÷5
4091397.8
n2
418488398946121
n3
8.5610125738684E+21
n4
1.7513254005249E+29
n5
3.5826844453958E+36
2 √n
4522.9403047133
3 √n
273.49364364864
4 √n
67.252808898315
5 √n
28.984668810581
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
-20456988
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 20456989 can be divided by 8 positive divisors.
The sum of these divisors (counting 20456989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110000010011000011101
3
Ternary
1102111022201021
4
Quaternary
1032002120131
5
Quinary
20214110424
6
Senary
2010244141
8
Octal
116023035
10
Decimal
20456989
12
Duodecimal
6a26651
16
Hexadecimal
138261d
20
Vigesimal
67h299
36
Base36
c6gpp
md5
7a4d12a24bdee52b2f409fdf08f28c84
sha1
ed090f8b10a4ab89e4685e25f06f08bcc9192657
sha256
4821548aab1187feab253c5eccc95b51dc819cdfa4bb206435be105c80430c61
sha512
f9b6252d65b336c980b2d7ba1a457f7d6c16c37dd439b248db4164d6e77a8447ddc05a7167a71956a45ad577f3fed662e69a14da9c98cb25b955a3e77fb89cec
ripemd-160
70f8b15cae58026f43b4a5ede777545844349dcf
Diameter
40913978
Circumference
128535052.71393
Area
1.3147200797417E+15
Volume
3.5860285612473E+22
Surface area
5.2588803189668E+15
Circumference
128535052.71393
Perimeter
81827956
Area
418488398946121
Diagonal
28930551.289117
Surface area
2510930393676726
Volume
8.5610125738684E+21
Space diagonal
35432544.317878
Perimeter
61370967
Area
1.8121079233821E+14
Altitude
17716272.158939
Surface area
1.8121079233821E+14
Volume
1.0089250074676E+21
Height
9643517.0963724