81102371 is an odd 8-digits composite number following 81102370
and preceding 81102372 . In scientific notation, it is written as 8.1102371 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 68678280 positive integers (up to 81102371) that are relatively prime to 81102371.
81102371 has 8 divisors, whose sum is 93805824
The reverse of 81102371 is 17320118
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
eighty-one million one hundred two thousand three hundred seventy-one
Scientific notation
8.1102371 × 10^7
Engineering notation
8.1102371 × 10^6
Prime Factorization
7 × 83 × 139591
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81102371
Product of the distinct prime numbers
The prime factorization of 81102371 is 7 × 83 × 139591.
Since it has a total of 3 prime factors.
9 , 9 , 88 , 68 , 138 , 6 , 9288 , 2218 , 12736 , 14910 , 670770 , 789821 , 7993320 , 9072509 , 12237438 , 58450699 , 665203019 , 45833651 , 8496907981 , 1949673575
n×2
162204742
n×3
243307113
n×4
324409484
n×5
405511855
n÷2
40551185.5
n÷3
27034123.666667
n÷3
20275592.75
n÷5
16220474.2
n2
6577594581821641
n3
5.3345851606249E+23
n4
4.3264750482809E+31
n5
3.5088738448792E+39
2 √n
9005.6854819608
3 √n
432.85707155486
4 √n
94.898290195139
5 √n
38.177431814618
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
-81102370
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 81102371 can be divided by 8 positive divisors.
The sum of these divisors (counting 81102371) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011000011000100011
3
Ternary
12122121102112112
4
Quaternary
10311120120203
5
Quinary
131230233441
6
Senary
12014145535
8
Octal
465303043
10
Decimal
81102371
12
Duodecimal
231b22ab
16
Hexadecimal
4d58623
20
Vigesimal
156hfib
36
Base36
1caazn
md5
b90d68b9193c62c23dbdb0a2de636fa3
sha1
1451c18ddb62b0bc2879e9c41e33788c2e7169b5
sha256
2ad0ce1ac6ca3c243f5a527f5d937634af7904469614b3db69c2c54b03d9ee16
sha512
64f8041981913f21500c8c8ba52f3571b848eab7cf774db77de3f446916094331642a241d175a1bfe6189cbb2b64e3389c50d106e640e05d6c3887c801c71651
ripemd-160
1781cf27d17ff993b9afe3661aee8d3ebc9b7537
Diameter
162204742
Circumference
509581225.84463
Area
2.0664122816543E+16
Volume
2.2345458067424E+24
Surface area
8.2656491266172E+16
Circumference
509581225.84463
Perimeter
324409484
Area
6577594581821641
Diagonal
114696073.00881
Surface area
39465567490929846
Volume
5.3345851606249E+23
Space diagonal
140473427.1863
Perimeter
243307113
Area
2.8481820018262E+15
Altitude
70236713.59315
Surface area
2.8481820018262E+15
Volume
6.2868689031583E+22
Height
38232024.336271