81104902 is an even 8-digits composite number following 81104901
and preceding 81104903 . In scientific notation, it is written as 8.1104902 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 40552450 positive integers (up to 81104902) that are relatively prime to 81104902.
81104902 has 4 divisors, whose sum is 121657356
The reverse of 81104902 is 20940118
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighty-one million one hundred four thousand nine hundred two
Scientific notation
8.1104902 × 10^7
Engineering notation
8.1104902 × 10^6
Prime Factorization
2 × 40552451
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81104902
Product of the distinct prime numbers
The prime factorization of 81104902 is 2 × 40552451.
Since it has a total of 2 prime factors.
4 , 8 , 11 , 38 , 357 , 290 , 1069 , 3086 , 36574 , 88382 , 81035 , 769836 , 716396 , 5312404 , 80356652 , 50288871 , 183499915 , 778048287 , 4225475090 , 3649237182
n×2
162209804
n×3
243314706
n×4
324419608
n×5
405524510
n÷2
40552451
n÷3
27034967.333333
n÷3
20276225.5
n÷5
16220980.4
n2
6578005128429604
n3
5.3350846129678E+23
n4
4.3270151469646E+31
n5
3.5094213944708E+39
2 √n
9005.8260032048
3 √n
432.86157429971
4 √n
94.899030570416
5 √n
38.177670095873
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81104901
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81104902 can be divided by 4 positive divisors.
The sum of these divisors (counting 81104902) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101011001000000000110
3
Ternary
12122121120000021
4
Quaternary
10311121000012
5
Quinary
131230324102
6
Senary
12014205354
8
Octal
465310006
10
Decimal
81104902
12
Duodecimal
231b385a
16
Hexadecimal
4d59006
20
Vigesimal
156i252
36
Base36
1cacxy
md5
b092a6ff2fefac09e18f125caadf19d7
sha1
fa76032464ecfc6b3f6df14c47ed66a54ac8e6df
sha256
7e57123f4ed02b9173a61854d3bfaa9aa05d59bf342f9138d8c62d1e033ec8b1
sha512
d2704d50ad9fdf5b6866e3b50c5eea4436488dce6cc484ef18470585eec565820a160ea9e8ca3b9d8f3a8d7d8673bc797f002a8cf8bb131daf6ee310d02010f0
ripemd-160
41214ec7b64a5826691647bdf179524d9bfad679
Diameter
162209804
Circumference
509597128.58664
Area
2.066541258675E+16
Volume
2.2347550168506E+24
Surface area
8.2661650347002E+16
Circumference
509597128.58664
Perimeter
324419608
Area
6578005128429604
Diagonal
114699652.38334
Surface area
39468030770577624
Volume
5.3350846129678E+23
Space diagonal
140477811.00689
Perimeter
243314706
Area
2.8483597737222E+15
Altitude
70238905.503447
Surface area
2.8483597737222E+15
Volume
6.2874575133892E+22
Height
38233217.461114