81234237 is an odd 8-digits composite number following 81234236
and preceding 81234238 . In scientific notation, it is written as 8.1234237 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 46419552 positive integers (up to 81234237) that are relatively prime to 81234237.
81234237 has 8 divisors, whose sum is 123785536
The reverse of 81234237 is 73243218
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-one million two hundred thirty-four thousand two hundred thirty-seven
Scientific notation
8.1234237 × 10^7
Engineering notation
8.1234237 × 10^6
Prime Factorization
3 × 7 × 3868297
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81234237
Product of the distinct prime numbers
The prime factorization of 81234237 is 3 × 7 × 3868297.
Since it has a total of 3 prime factors.
10 , 1 , 80 , 25 , 516 , 321 , 8177 , 7849 , 5858 , 65989 , 71904 , 828948 , 7742304 , 3661612 , 3342164 , 77719563 , 293274976 , 752400151 , 3500281760 , 4423905144
n×2
162468474
n×3
243702711
n×4
324936948
n×5
406171185
n÷2
40617118.5
n÷3
27078079
n÷3
20308559.25
n÷5
16246847.4
n2
6599001260972169
n3
5.3606483239711E+23
n4
4.3546817642312E+31
n5
3.5374925049514E+39
2 √n
9013.0037723281
3 √n
433.09154157274
4 √n
94.936840964549
5 √n
38.189838441454
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
-81234236
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 81234237 can be divided by 8 positive divisors.
The sum of these divisors (counting 81234237) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101111000100100111101
3
Ternary
12122212010102110
4
Quaternary
10311320210331
5
Quinary
131243443422
6
Senary
12021044233
8
Octal
465704475
10
Decimal
81234237
12
Duodecimal
23256679
16
Hexadecimal
4d7893d
20
Vigesimal
157e5bh
36
Base36
1cd4ql
md5
ab67501f07eb25052947fcd939ea7906
sha1
1a832d04509ec4a8bc437c21714535280663850c
sha256
e6706f3e2f72d621eda3af501064ed34d62830903964e4d059614eddda216ba1
sha512
f2f0aabb4decbf8ff42ce685240546f63e7107a72b39136a71e982c4a2c11adfebe11d20d976a72a6164d67d6a557289705875c3acf333828bd11aa78565531d
ripemd-160
63484afea9fdcf3c8f25e6265287671d6b15e0cc
Diameter
162468474
Circumference
510409764.35834
Area
2.07313738825E+16
Volume
2.2454631190755E+24
Surface area
8.292549553E+16
Circumference
510409764.35834
Perimeter
324936948
Area
6599001260972169
Diagonal
114882559.69443
Surface area
39594007565833014
Volume
5.3606483239711E+23
Space diagonal
140701825.79809
Perimeter
243702711
Area
2.8574513658037E+15
Altitude
70350912.899046
Surface area
2.8574513658037E+15
Volume
6.3175846357271E+22
Height
38294186.56481