81196913 is an odd 8-digits composite number following 81196912
and preceding 81196914 . In scientific notation, it is written as 8.1196913 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 65503296 positive integers (up to 81196913) that are relatively prime to 81196913.
81196913 has 8 divisors, whose sum is 98255232
The reverse of 81196913 is 31969118
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million one hundred ninety-six thousand nine hundred thirteen
Scientific notation
8.1196913 × 10^7
Engineering notation
8.1196913 × 10^6
Prime Factorization
7 × 17 × 682327
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81196913
Product of the distinct prime numbers
The prime factorization of 81196913 is 7 × 17 × 682327.
Since it has a total of 3 prime factors.
7 , 10 , 45 , 97 , 577 , 637 , 4166 , 7862 , 46337 , 59399 , 193707 , 600380 , 1769467 , 4555025 , 97463028 , 33167391 , 284193202 , 882145722 , 9053560165 , 2631638326
n×2
162393826
n×3
243590739
n×4
324787652
n×5
405984565
n÷2
40598456.5
n÷3
27065637.666667
n÷3
20299228.25
n÷5
16239382.6
n2
6592938680729569
n3
5.3532626847353E+23
n4
4.346684044786E+31
n5
3.5293732622298E+39
2 √n
9010.9329705641
3 √n
433.02520178953
4 √n
94.925934130585
5 √n
38.186328444632
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
-81196912
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 81196913 can be divided by 8 positive divisors.
The sum of these divisors (counting 81196913) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101101111011101110001
3
Ternary
12122210020020002
4
Quaternary
10311233131301
5
Quinary
131241300123
6
Senary
12020155345
8
Octal
465573561
10
Decimal
81196913
12
Duodecimal
23238b55
16
Hexadecimal
4d6f771
20
Vigesimal
1579c5d
36
Base36
1ccbxt
md5
fc66d1f69bcdd8658ac5ef8b04e57ac3
sha1
402f0cb5f683aeda95a9b8c7d1a2848cedbc996c
sha256
f8f5823b6b745d79ab3db01fd4a33895b6d9c8fae31c1d853e3d684d4f5277d3
sha512
9f82778df64a4238e3ec80f7f7d0d3ed7683d7013696e8e67ebf8161b8f5fabb65d07c7d305a4817dcba0aa6b6c46de4bce9cb11aae15cfd9db6a26f7e8eab0f
ripemd-160
d056cd11f43dfbe851d6c0f7ceb6bda8de2fac20
Diameter
162393826
Circumference
510175250.74994
Area
2.0712327724948E+16
Volume
2.2423694297468E+24
Surface area
8.2849310899792E+16
Circumference
510175250.74994
Perimeter
324787652
Area
6592938680729569
Diagonal
114829775.58743
Surface area
39557632084377414
Volume
5.3532626847353E+23
Space diagonal
140637178.73375
Perimeter
243590739
Area
2.8548261915524E+15
Altitude
70318589.366875
Surface area
2.8548261915524E+15
Volume
6.3088805764154E+22
Height
38276591.862476