20451998 is an even 8-digits composite number following 20451997
and preceding 20451999 . In scientific notation, it is written as 2.0451998 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 8765136 positive integers (up to 20451998) that are relatively prime to 20451998.
20451998 has 8 divisors, whose sum is 35060592
The reverse of 20451998 is 89915402
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million four hundred fifty-one thousand nine hundred ninety-eight
Scientific notation
2.0451998 × 10^7
Engineering notation
2.0451998 × 10^6
Prime Factorization
2 × 7 × 1460857
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20451998
Product of the distinct prime numbers
The prime factorization of 20451998 is 2 × 7 × 1460857.
Since it has a total of 3 prime factors.
6 , 4 , 56 , 87 , 691 , 669 , 3785 , 3079 , 3335 , 40146 , 149425 , 648217 , 3559686 , 6527527 , 17415750 , 4658538 , 132147723 , 5239624 , 2436105411 , 5691859528
n×2
40903996
n×3
61355994
n×4
81807992
n×5
102259990
n÷2
10225999
n÷3
6817332.6666667
n÷3
5112999.5
n÷5
4090399.6
n2
418284222192004
n3
8.5547480757024E+21
n4
1.7496169053477E+29
n5
3.5783161448937E+36
2 √n
4522.3885282006
3 √n
273.47139994178
4 √n
67.248706516933
5 √n
28.983254363893
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
-20451997
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 20451998 can be divided by 8 positive divisors.
The sum of these divisors (counting 20451998) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110000001001010011110
3
Ternary
1102111001212102
4
Quaternary
1032001022132
5
Quinary
20213430443
6
Senary
2010205102
8
Octal
116011236
10
Decimal
20451998
12
Duodecimal
6a23792
16
Hexadecimal
138129e
20
Vigesimal
67g9ji
36
Base36
c6cv2
md5
095eaa52aea4b47cdaf8e3898c17c879
sha1
b92a86bbde301f62f715b822a170e4be2d53b66c
sha256
d1814bbe1a8bd7fec30dcd47723e3c817371539b09863fff27576db956a88332
sha512
a1b9d2a0edfeef9740642481b37f03a765c44f5aff8de8a14d57a97319f9cdc444f342f4cc485cf4bdc39b466a8c2daca0815e844182ce3f8a207cf8296cacee
ripemd-160
eb538a89045bd17318040d4eb03a84ff92b803e5
Diameter
40903996
Circumference
128503693.33607
Area
1.3140786395509E+15
Volume
3.5834044943918E+22
Surface area
5.2563145582037E+15
Circumference
128503693.33607
Perimeter
81807992
Area
418284222192004
Diagonal
28923492.949227
Surface area
2509705333152024
Volume
8.5547480757024E+21
Space diagonal
35423899.652297
Perimeter
61355994
Area
1.8112238121025E+14
Altitude
17711949.826149
Surface area
1.8112238121025E+14
Volume
1.0081867292786E+21
Height
9641164.3164091