19997451 is an odd 8-digits composite number following 19997450
and preceding 19997452 . In scientific notation, it is written as 1.9997451 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 13021344 positive integers (up to 19997451) that are relatively prime to 19997451.
19997451 has 8 divisors, whose sum is 22736560
The reverse of 19997451 is 15479991
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
nineteen million nine hundred ninety-seven thousand four hundred fifty-one
Scientific notation
1.9997451 × 10^7
Engineering notation
1.9997451 × 10^6
Prime Factorization
9 × 43 × 51673
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19997451
Product of the distinct prime numbers
The prime factorization of 19997451 is 9 × 43 × 51673.
Since it has a total of 3 prime factors.
6 , 2 , 81 , 14 , 59 , 290 , 9893 , 676 , 77779 , 13009 , 403497 , 192016 , 6963511 , 7955037 , 41313856 , 42758949 , 263546025 , 20739339 , 5572971522 , 8150956300
n×2
39994902
n×3
59992353
n×4
79989804
n×5
99987255
n÷2
9998725.5
n÷3
6665817
n÷3
4999362.75
n÷5
3999490.2
n2
399898046497401
n3
7.9969415898275E+21
n4
1.5991844759244E+29
n5
3.1979613197258E+36
2 √n
4471.8509590549
3 √n
271.43022941871
4 √n
66.871899622
5 √n
28.853262592234
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
-19997450
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 19997451 can be divided by 8 positive divisors.
The sum of these divisors (counting 19997451) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100010010001100001011
3
Ternary
1101121222100100
4
Quaternary
1030102030023
5
Quinary
20104404301
6
Senary
1552340443
8
Octal
114221413
10
Decimal
19997451
12
Duodecimal
6844723
16
Hexadecimal
131230b
20
Vigesimal
64jdcb
36
Base36
bwm4r
md5
316d39507e19dc106425ea368a49d89e
sha1
b9fe3a995d68a02e0d5151038f836c8391796251
sha256
0726433ebdc2d62ee62284afadc63630a06887a4c653a5be52fb9458ef11c7cc
sha512
1552e21b45c9d78a47786091ed1aa6d7f045d1c78cb0d8c09874fa87fc443b08e2d68284152d58f415ee22568a20a4a0b2b120392ee9ee3c24e8365dc38c47a1
ripemd-160
903bd7b5ddd710d6e6652424ebd36473e00cd6de
Diameter
39994902
Circumference
125647690.30424
Area
1.2563167650611E+15
Volume
3.3497510599718E+22
Surface area
5.0252670602446E+15
Circumference
125647690.30424
Perimeter
79989804
Area
399898046497401
Diagonal
28280666.417091
Surface area
2399388278984406
Volume
7.9969415898275E+21
Space diagonal
34636601.153869
Perimeter
59992353
Area
1.7316093359526E+14
Altitude
17318300.576935
Surface area
1.7316093359526E+14
Volume
9.4244860448663E+20
Height
9426888.8056971