68097981 is an odd 8-digits composite number following 68097980
and preceding 68097982 . In scientific notation, it is written as 6.8097981 × 10^7.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 38567424 positive integers (up to 68097981) that are relatively prime to 68097981.
68097981 has 16 divisors, whose sum is 104690304
The reverse of 68097981 is 18979086
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
sixty-eight million ninety-seven thousand nine hundred eighty-one
Scientific notation
6.8097981 × 10^7
Engineering notation
6.8097981 × 10^6
Prime Factorization
3 × 7 × 113 × 28697
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
68097981
Product of the distinct prime numbers
The prime factorization of 68097981 is 3 × 7 × 113 × 28697.
Since it has a total of 4 prime factors.
9 , 2 , 12 , 38 , 438 , 795 , 4526 , 5487 , 75774 , 76079 , 560572 , 670477 , 6206006 , 7978964 , 92802774 , 70087927 , 925047146 , 796661499 , 8336763951 , 3204947458
n×2
136195962
n×3
204293943
n×4
272391924
n×5
340489905
n÷2
34048990.5
n÷3
22699327
n÷3
17024495.25
n÷5
13619596.2
n2
4637335016276361
n3
3.1579315182902E+23
n4
2.1504876053183E+31
n5
1.464438640877E+39
2 √n
8252.1500834631
3 √n
408.36145760288
4 √n
90.841345671798
5 √n
36.866070323682
1 , 3 , 7 , 21 , 113 , 339 , 791 , 2373 , 28697 , 86091 , 200879 , 602637 , 3242761 , 9728283 , 22699327 , 68097981
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
-68097980
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 68097981 can be divided by 16 positive divisors.
The sum of these divisors (counting 68097981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100000011110001011110111101
3
Ternary
11202010201212110
4
Quaternary
10003301132331
5
Quinary
114413113411
6
Senary
10431324233
8
Octal
403613675
10
Decimal
68097981
12
Duodecimal
1a980679
16
Hexadecimal
40f17bd
20
Vigesimal
115c4j1
36
Base36
14jkql
md5
ee531cd433a27a12137a9d99a0b898e9
sha1
9b44c9e6dd9d345033b926347b03924be4825be5
sha256
d20d423684057644d010c5e6ecb91fab51528d52894786af9f1b9a4f103937fc
sha512
c0319af0a4d95de5e55342298250fbfd7a67acfac5d16238f72e0875063d1d02709d939e24908e6c65b8c5c83bdc368580573d2024761c4a326219f529062d22
ripemd-160
4f0d9925924e7c89b04e75bcbb126babb4677d44
Diameter
136195962
Circumference
427872233.66779
Area
1.4568617619369E+16
Volume
1.32279126112E+24
Surface area
5.8274470477474E+16
Circumference
427872233.66779
Perimeter
272391924
Area
4637335016276361
Diagonal
96305088.300425
Surface area
27824010097658166
Volume
3.1579315182902E+23
Space diagonal
117949162.98486
Perimeter
204293943
Area
2.0080249649772E+15
Altitude
58974581.49243
Surface area
2.0080249649772E+15
Volume
3.7216579851762E+22
Height
32101696.100142