81274064 is an even 8-digits composite number following 81274063
and preceding 81274065 . In scientific notation, it is written as 8.1274064 × 10^7.
The sum of its digits is 32. It has a total of 6 prime factors and 20 positive divisors.
There are 39325920 positive integers (up to 81274064) that are relatively prime to 81274064.
81274064 has 20 divisors, whose sum is 162549120
The reverse of 81274064 is 46047218
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million two hundred seventy-four thousand sixty-four
Scientific notation
8.1274064 × 10^7
Engineering notation
8.1274064 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 31 × 163859
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
10159258
Product of the distinct prime numbers
The prime factorization of 81274064 is 2 × 2 × 2 × 2 × 31 × 163859.
Since it has a total of 6 prime factors.
7 , 1 , 75 , 20 , 393 , 334 , 1822 , 1299 , 66718 , 8869 , 759921 , 688178 , 2370371 , 7223010 , 97626385 , 30641722 , 984095070 , 32476746 , 7527821541 , 5761487609
n×2
162548128
n×3
243822192
n×4
325096256
n×5
406370320
n÷2
40637032
n÷3
27091354.666667
n÷3
20318516
n÷5
16254812.8
n2
6605473479076096
n3
5.3685367428873E+23
n4
4.3632279882778E+31
n5
3.5461727076588E+39
2 √n
9015.2129203918
3 √n
433.16230778891
4 √n
94.948475081972
5 √n
38.193582401044
1 , 2 , 4 , 8 , 16 , 31 , 62 , 124 , 248 , 496 , 163859 , 327718 , 655436 , 1310872 , 2621744 , 5079629 , 10159258 , 20318516 , 40637032 , 81274064
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81274063
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81274064 can be divided by 20 positive divisors.
The sum of these divisors (counting 81274064) is 1, the average is 0.05.
Base
System
Value
2
Binary
100110110000010010011010000
3
Ternary
12122221011001112
4
Quaternary
10312002103100
5
Quinary
131301232224
6
Senary
12021552452
8
Octal
466022320
10
Decimal
81274064
12
Duodecimal
23275728
16
Hexadecimal
4d824d0
20
Vigesimal
157j534
36
Base36
1cdzgw
md5
5bc6120a03f1ea7597794921e170e0ef
sha1
5ce2c66f5f558fde45975962d95938f6d954cf7b
sha256
f580fc004dabb48913a35fd44b3c8a21c45748b53a2e583cedce2720a8428799
sha512
ea40fe1ac0d58669811dabb8422fe3c1d6033972806a895c9166c56e879f042d5112126f030f274e03676d688eb43ad7e8caf162edefc3bdde0216b20be81699
ripemd-160
4a082e41a7255723f12c8d369677a6121bf81f15
Diameter
162548128
Circumference
510660004.77957
Area
2.0751706955348E+16
Volume
2.2487674122642E+24
Surface area
8.3006827821391E+16
Circumference
510660004.77957
Perimeter
325096256
Area
6605473479076096
Diagonal
114938883.57798
Surface area
39632840874456576
Volume
5.3685367428873E+23
Space diagonal
140770808.1856
Perimeter
243822192
Area
2.8602539184521E+15
Altitude
70385404.092802
Surface area
2.8602539184521E+15
Volume
6.3268812265746E+22
Height
38312961.19266