19997385 is an odd 8-digits composite number following 19997384
and preceding 19997386 . In scientific notation, it is written as 1.9997385 × 10^7.
The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors.
There are 10297280 positive integers (up to 19997385) that are relatively prime to 19997385.
19997385 has 16 divisors, whose sum is 33099840
The reverse of 19997385 is 58379991
Previous prime number is 29
Is Prime? no Number parity odd Number length 8 Sum of Digits 51 Digital Root 6
Name
nineteen million nine hundred ninety-seven thousand three hundred eighty-five
Scientific notation
1.9997385 × 10^7
Engineering notation
1.9997385 × 10^6
Prime Factorization
3 × 5 × 29 × 45971
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
19997385 Product of the distinct prime numbers
The prime factorization of 19997385 is 3 × 5 × 29 × 45971.
Since it has a total of 4 prime factors.
5 , 10 , 67 , 74 , 916 , 935 , 2292 , 4595 , 87885 , 32689 , 468841 , 4639 , 9881747 , 6355517 , 95523179 , 80826383 , 584075972 , 841698914 , 7329970421 , 1818272217
n×2
39994770
n×3
59992155
n×4
79989540
n×5
99986925
n÷2
9998692.5
n÷3
6665795
n÷3
4999346.25
n÷5
3999477
n2
399895406838225
n3
7.9968624102756E+21
n4
1.5991633641031E+29
n5
3.1979085469865E+36
2 √n4471.8435795542
3 √n271.42993080707
4 √n66.871844445583
5 √n28.853243546628
1 , 3 , 5 , 15 , 29 , 87 , 145 , 435 , 45971 , 137913 , 229855 , 689565 , 1333159 , 3999477 , 6665795 , 19997385
16 divisors
τ Total Divisors
16 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-19997384 Sum of the proper positive divisors of n
A Arithmetic Mean
0.0625 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
16 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19997385 can be divided by 16 positive divisors.
The sum of these divisors (counting 19997385) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100010010001011001001
3
Ternary
1101121222020220
4
Quaternary
1030102023021
5
Quinary
20104404020
6
Senary
1552340253
8
Octal
114221311
10
Decimal
19997385
12
Duodecimal
6844689
16
Hexadecimal
13122c9
20
Vigesimal
64jd95
36
Base36
bwm2x
md5
52373bb90634e6810c0f5be3cb437979
sha1
722bbf2a7dd4b1813a20abee8db75ed145ad92e1
sha256
3b1948e85fb4fb9457688cfa20eafdba6e94eaf24b269ef0bf325adeec41375e
sha512
deb395994e8704472fcb3f5d417eaa1063e2eda08884a55c5dda9ffcb58201c825d7318b461cd570e7f40d659cdbf387056719b0e192cffde9f93b768849fe57
ripemd-160
62b247cd5c4bd395d3f4b84b87a7343b06520caf
Diameter
39994770
Circumference
125647275.61401
Area
1.2563084723273E+15
Volume
3.3497178933187E+22
Surface area
5.0252338893091E+15
Circumference
125647275.61401
Perimeter
79989540
Area
399895406838225
Diagonal
28280573.078996
Surface area
2399372441029350
Volume
7.9968624102756E+21
Space diagonal
34636486.838516
Perimeter
59992155
Area
1.7315979058931E+14
Altitude
17318243.419258
Surface area
1.7315979058931E+14
Volume
9.4243927308695E+20
Height
9426857.6929988