19997831 is an odd 8-digits composite number following 19997830
and preceding 19997832 . In scientific notation, it is written as 1.9997831 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 16132032 positive integers (up to 19997831) that are relatively prime to 19997831.
19997831 has 8 divisors, whose sum is 21607200
The reverse of 19997831 is 13879991
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
nineteen million nine hundred ninety-seven thousand eight hundred thirty-one
Scientific notation
1.9997831 × 10^7
Engineering notation
1.9997831 × 10^6
Prime Factorization
49 × 17 × 24007
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19997831
Product of the distinct prime numbers
The prime factorization of 19997831 is 49 × 17 × 24007.
Since it has a total of 3 prime factors.
1 , 9 , 94 , 56 , 608 , 390 , 3184 , 7901 , 81410 , 71032 , 953450 , 555661 , 9123070 , 3614047 , 97252088 , 27081933 , 343111675 , 123882010 , 2736120096 , 6220902990
n×2
39995662
n×3
59993493
n×4
79991324
n×5
99989155
n÷2
9998915.5
n÷3
6665943.6666667
n÷3
4999457.75
n÷5
3999566.2
n2
399913244704561
n3
7.9973974822635E+21
n4
1.5993060329013E+29
n5
3.1982651763241E+36
2 √n
4471.8934468522
3 √n
271.43194868506
4 √n
66.872217301748
5 √n
28.853372247774
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
-19997830
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 19997831 can be divided by 8 positive divisors.
The sum of these divisors (counting 19997831) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100010010010010000111
3
Ternary
1101121222212102
4
Quaternary
1030102102013
5
Quinary
20104412311
6
Senary
1552342315
8
Octal
114222207
10
Decimal
19997831
12
Duodecimal
684499b
16
Hexadecimal
1312487
20
Vigesimal
64jebb
36
Base36
bwmfb
md5
65704ee59cc527aba40bc5bc57c15542
sha1
86a2d7be8d4ad51b988c4cbddaa9b4f74eb1cd11
sha256
571257f5f745fce1d71a18f69cc5de5c6a21d69d113767208399c548692e36e5
sha512
443f31865578340dee89520cce63edca417f751a85fc38beb9d2a424c2e13dc1f6c302deb0964b16509fd05c65bf9f270be265a4f1ef1c4fed582a148d46f266
ripemd-160
bb04d2e8394989aa463752fb82a1dc67ab9bc3c2
Diameter
39995662
Circumference
125650077.91466
Area
1.2563645116371E+15
Volume
3.3499420237489E+22
Surface area
5.0254580465484E+15
Circumference
125650077.91466
Perimeter
79991324
Area
399913244704561
Diagonal
28281203.818245
Surface area
2399479468227366
Volume
7.9973974822635E+21
Space diagonal
34637259.333176
Perimeter
59993493
Area
1.7316751461201E+14
Altitude
17318629.666588
Surface area
1.7316751461201E+14
Volume
9.4250233192545E+20
Height
9427067.939415