20297987 is an odd 8-digits composite number following 20297986
and preceding 20297988 . In scientific notation, it is written as 2.0297987 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 20284656 positive integers (up to 20297987) that are relatively prime to 20297987.
20297987 has 4 divisors, whose sum is 20311320
The reverse of 20297987 is 78979202
Previous prime number is 1753
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million two hundred ninety-seven thousand nine hundred eighty-seven
Scientific notation
2.0297987 × 10^7
Engineering notation
2.0297987 × 10^6
Prime Factorization
1753 × 11579
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20297987
Product of the distinct prime numbers
The prime factorization of 20297987 is 1753 × 11579.
Since it has a total of 2 prime factors.
7 , 1 , 36 , 13 , 883 , 491 , 3670 , 7940 , 3278 , 40859 , 403659 , 217704 , 907329 , 4261581 , 971304 , 81986042 , 456347687 , 472836991 , 5209556726 , 9204687391
n×2
40595974
n×3
60893961
n×4
81191948
n×5
101489935
n÷2
10148993.5
n÷3
6765995.6666667
n÷3
5074496.75
n÷5
4059597.4
n2
412008276252169
n3
8.3629386352589E+21
n4
1.6975081970028E+29
n5
3.4455999315157E+36
2 √n
4505.328733844
3 √n
272.78322319092
4 √n
67.121745610822
5 √n
28.939471389779
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
-20297986
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 20297987 can be divided by 4 positive divisors.
The sum of these divisors (counting 20297987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101011011100100000011
3
Ternary
1102012020121022
4
Quaternary
1031123210003
5
Quinary
20144013422
6
Senary
2003020055
8
Octal
115334403
10
Decimal
20297987
12
Duodecimal
696a62b
16
Hexadecimal
135b903
20
Vigesimal
66h4j7
36
Base36
c320z
md5
51bd92decc82e983d73de87a42ac22dd
sha1
5866ceec9e83b89c392df9b839214bb882987c28
sha256
8fe84a92fc37a5e13570a9eae94abe40afa0e5bc23f1906efc948bc510ddbd26
sha512
502d1cd601b48c9a97192269e35e83fc4e91725ead2ac3e9740bffd5a49def200b58a906a8e4e8405acf55aa2fffe8c03e6bbd378a1c1ba94b6b724419a926f2
ripemd-160
6b6ba0c63c7e42c26e4518685d53cd9dc8d426fd
Diameter
40595974
Circumference
127536013.68372
Area
1.294362173892E+15
Volume
3.5030595438602E+22
Surface area
5.177448695568E+15
Circumference
127536013.68372
Perimeter
81191948
Area
412008276252169
Diagonal
28705688.504273
Surface area
2472049657513014
Volume
8.3629386352589E+21
Space diagonal
35157144.775373
Perimeter
60893961
Area
1.7840481690191E+14
Altitude
17578572.387686
Surface area
1.7840481690191E+14
Volume
9.8558176993976E+20
Height
9568562.8347576