81245101 is an odd 8-digits composite number following 81245100
and preceding 81245102 . In scientific notation, it is written as 8.1245101 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 68756688 positive integers (up to 81245101) that are relatively prime to 81245101.
81245101 has 8 divisors, whose sum is 94027520
The reverse of 81245101 is 10154218
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
eighty-one million two hundred forty-five thousand one hundred one
Scientific notation
8.1245101 × 10^7
Engineering notation
8.1245101 × 10^6
Prime Factorization
7 × 79 × 146917
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81245101
Product of the distinct prime numbers
The prime factorization of 81245101 is 7 × 79 × 146917.
Since it has a total of 3 prime factors.
7 , 8 , 15 , 21 , 958 , 324 , 3089 , 2729 , 94797 , 9301 , 477326 , 256751 , 8995098 , 4895428 , 73578794 , 87225049 , 506579888 , 676017330 , 8411826996 , 9508807051
n×2
162490202
n×3
243735303
n×4
324980404
n×5
406225505
n÷2
40622550.5
n÷3
27081700.333333
n÷3
20311275.25
n÷5
16249020.2
n2
6600766436500201
n3
5.3627993581087E+23
n4
4.3570117549228E+31
n5
3.5398586008689E+39
2 √n
9013.6064369374
3 √n
433.11084745882
4 √n
94.940014940685
5 √n
38.190859863522
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
-81245100
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 81245101 can be divided by 8 positive divisors.
The sum of these divisors (counting 81245101) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101111011001110101101
3
Ternary
12122212200022211
4
Quaternary
10311323032231
5
Quinary
131244320401
6
Senary
12021210421
8
Octal
465731655
10
Decimal
81245101
12
Duodecimal
23260a11
16
Hexadecimal
4d7b3ad
20
Vigesimal
157fcf1
36
Base36
1cdd4d
md5
b739613cdf5748c70bc8e7ab865e332d
sha1
f8befff87a354f12842bc91619262fa0fbdbcc95
sha256
add39589f806ae4abb0c466c594a8cd692ea106dd542690c4825266ad46c7421
sha512
65a20c0d7b79b800cd4a7108b8abac382e8c6a1d498ae41e918284c8f70d0ea2c46967b5f4c8e2825d0fce15283c09930be343005462a09ddf0bbb82b5023b0f
ripemd-160
eaa8b8c35ae997bcca7f905612be1b80f4dd884b
Diameter
162490202
Circumference
510478024.88352
Area
2.0736919344971E+16
Volume
2.246364142148E+24
Surface area
8.2947677379884E+16
Circumference
510478024.88352
Perimeter
324980404
Area
6600766436500201
Diagonal
114897923.71057
Surface area
39604598619001206
Volume
5.3627993581087E+23
Space diagonal
140720642.79807
Perimeter
243735303
Area
2.8582157092284E+15
Altitude
70360321.399033
Surface area
2.8582157092284E+15
Volume
6.3201196537692E+22
Height
38299307.903524