81497698 is an even 8-digits composite number following 81497697
and preceding 81497699 . In scientific notation, it is written as 8.1497698 × 10^7.
The sum of its digits is 52. It has a total of 3 prime factors and 8 positive divisors.
There are 39434340 positive integers (up to 81497698) that are relatively prime to 81497698.
81497698 has 8 divisors, whose sum is 126190080
The reverse of 81497698 is 89679418
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 52
Digital Root 7
Name
eighty-one million four hundred ninety-seven thousand six hundred ninety-eight
Scientific notation
8.1497698 × 10^7
Engineering notation
8.1497698 × 10^6
Prime Factorization
2 × 31 × 1314479
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81497698
Product of the distinct prime numbers
The prime factorization of 81497698 is 2 × 31 × 1314479.
Since it has a total of 3 prime factors.
3 , 8 , 21 , 35 , 104 , 250 , 612 , 7895 , 87240 , 5843 , 958617 , 910998 , 7235769 , 3046645 , 64315192 , 73165503 , 388500320 , 865238654 , 4101369933 , 6670122552
n×2
162995396
n×3
244493094
n×4
325990792
n×5
407488490
n÷2
40748849
n÷3
27165899.333333
n÷3
20374424.5
n÷5
16299539.6
n2
6641874779299204
n3
5.4129750491714E+23
n4
4.4114500583891E+31
n5
3.5952302460068E+39
2 √n
9027.6075457454
3 √n
433.55924091959
4 √n
95.013722933824
5 √n
38.214578024192
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
-81497697
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 81497698 can be divided by 8 positive divisors.
The sum of these divisors (counting 81497698) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110111000111001100010
3
Ternary
12200100111211021
4
Quaternary
10312320321202
5
Quinary
131330411243
6
Senary
12030440054
8
Octal
466707142
10
Decimal
81497698
12
Duodecimal
2336302a
16
Hexadecimal
4db8e62
20
Vigesimal
159744i
36
Base36
1cis0y
md5
deee3b70967b14d3e5ed6e611d0af45f
sha1
3991a14d0cc85a46a342365809193d8c71d5612f
sha256
9976606403ec96cde77dee6b203aefc462da253de4727cf1e371cd0d6f5a396d
sha512
fa4e47dd940a8562d65fb97da0bcb81901763c7077280ee861008406bb2122d3b00db15b8c4c541cff47be6119b386ff65f0cb733d9524f1cd33c99261c10d0e
ripemd-160
115f7373a7b8047479108697c48583b08bab08eb
Diameter
162995396
Circumference
512065138.64256
Area
2.086606501271E+16
Volume
2.2673816864722E+24
Surface area
8.3464260050839E+16
Circumference
512065138.64256
Perimeter
325990792
Area
6641874779299204
Diagonal
115255149.81379
Surface area
39851248675795224
Volume
5.4129750491714E+23
Space diagonal
141158153.6359
Perimeter
244493094
Area
2.8760161438141E+15
Altitude
70579076.817952
Surface area
2.8760161438141E+15
Volume
6.3792522727712E+22
Height
38418383.271262