20997551 is an odd 8-digits composite number following 20997550
and preceding 20997552 . In scientific notation, it is written as 2.0997551 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 20020792 positive integers (up to 20997551) that are relatively prime to 20997551.
20997551 has 8 divisors, whose sum is 21980160
The reverse of 20997551 is 15579902
Previous prime number is 359
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million nine hundred ninety-seven thousand five hundred fifty-one
Scientific notation
2.0997551 × 10^7
Engineering notation
2.0997551 × 10^6
Prime Factorization
23 × 359 × 2543
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20997551
Product of the distinct prime numbers
The prime factorization of 20997551 is 23 × 359 × 2543.
Since it has a total of 3 prime factors.
4 , 1 , 59 , 94 , 492 , 910 , 6008 , 4795 , 9371 , 1273 , 419636 , 997141 , 4903182 , 1960919 , 52429423 , 82517210 , 965532304 , 814059582 , 733318079 , 8141242622
n×2
41995102
n×3
62992653
n×4
83990204
n×5
104987755
n÷2
10498775.5
n÷3
6999183.6666667
n÷3
5249387.75
n÷5
4199510.2
n2
440897147997601
n3
9.2577603508342E+21
n4
1.9439029511242E+29
n5
4.0817201355281E+36
2 √n
4582.3084793584
3 √n
275.88169245085
4 √n
67.692750567239
5 √n
29.136254969746
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
-20997550
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 20997551 can be divided by 8 positive divisors.
The sum of these divisors (counting 20997551) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000110010110101111
3
Ternary
1110111210020002
4
Quaternary
1100012112233
5
Quinary
20333410201
6
Senary
2030014515
8
Octal
120062657
10
Decimal
20997551
12
Duodecimal
704743b
16
Hexadecimal
14065af
20
Vigesimal
6b4dhb
36
Base36
ci1tb
md5
da38b55eacd3b2210d217ad9170a6090
sha1
fb6b7a64c29b8f2b2f377e4a3fcf9b5f86d3baf3
sha256
7292d84f572cca17fcf6120b05102081498797ea0bbcab40f484ecb9aab2ea2f
sha512
7355347f7af5a00c9fc77b13ce0e170770736b5d5fe656db445d39d9c59781bc647f0958779964314174e3c4fa73704636256841010dc807da8ade3776d05b38
ripemd-160
5505abb7e5d29a63de6ab3182a5faaef0a7c80ea
Diameter
41995102
Circumference
131931503.92995
Area
1.385119241138E+15
Volume
3.8778815875834E+22
Surface area
5.5404769645518E+15
Circumference
131931503.92995
Perimeter
83990204
Area
440897147997601
Diagonal
29695021.400821
Surface area
2645382887985606
Volume
9.2577603508342E+21
Space diagonal
36368825.166519
Perimeter
62992653
Area
1.9091406531101E+14
Altitude
18184412.583259
Surface area
1.9091406531101E+14
Volume
1.0910375204458E+21
Height
9898340.4669402