81551296 is an even 8-digits composite number following 81551295
and preceding 81551297 . In scientific notation, it is written as 8.1551296 × 10^7.
The sum of its digits is 37. It has a total of 8 prime factors and 28 positive divisors.
There are 39779840 positive integers (up to 81551296) that are relatively prime to 81551296.
81551296 has 28 divisors, whose sum is 165780720
The reverse of 81551296 is 69215518
Previous prime number is 41
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-one million five hundred fifty-one thousand two hundred ninety-six
Scientific notation
8.1551296 × 10^7
Engineering notation
8.1551296 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 41 × 31079
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
2548478
Product of the distinct prime numbers
The prime factorization of 81551296 is 2 × 2 × 2 × 2 × 2 × 2 × 41 × 31079.
Since it has a total of 8 prime factors.
2 , 5 , 66 , 80 , 69 , 271 , 6463 , 7976 , 28867 , 36730 , 377892 , 370355 , 4585992 , 8680048 , 40050726 , 91896061 , 428458380 , 756188078 , 3982555478 , 9742153215
n×2
163102592
n×3
244653888
n×4
326205184
n×5
407756480
n÷2
40775648
n÷3
27183765.333333
n÷3
20387824
n÷5
16310259.2
n2
6650613879279616
n3
5.4236618105084E+23
n4
4.4230664971267E+31
n5
3.6070680513486E+39
2 √n
9030.5756184199
3 √n
433.65426534519
4 √n
95.029340829135
5 √n
38.219603163304
1 , 2 , 4 , 8 , 16 , 32 , 41 , 64 , 82 , 164 , 328 , 656 , 1312 , 2624 , 31079 , 62158 , 124316 , 248632 , 497264 , 994528 , 1274239 , 1989056 , 2548478 , 5096956 , 10193912 , 20387824 , 40775648 , 81551296
28 divisors
τ
Total Divisors
28
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81551295
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.035714285714286
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
28
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81551296 can be divided by 28 positive divisors.
The sum of these divisors (counting 81551296) is 1, the average is 0.035714285714286.
Base
System
Value
2
Binary
100110111000101111111000000
3
Ternary
12200110020100101
4
Quaternary
10313011333000
5
Quinary
131334120141
6
Senary
12031532144
8
Octal
467057700
10
Decimal
81551296
12
Duodecimal
2338a054
16
Hexadecimal
4dc5fc0
20
Vigesimal
159di4g
36
Base36
1cjxds
md5
4b7f1d862057fbddf482941b42d2603e
sha1
d0649f39dca70957fb963301c914e36089ff0370
sha256
7fc3ad3a21cf5ab67c918def2f2804866c42d96a920171cccbfc28c2bc3e94fb
sha512
f556a00725eeb97755b49e537dfba1cc9ac67d717bb1aaf481f38ad7f6fb6b10df74565e5dff74cf13a11373eb35f083e184e9351e9320268a5663868cd48bf7
ripemd-160
1c0628bc6a71ba959815f228b15a76c39d2876ff
Diameter
163102592
Circumference
512401904.80865
Area
2.0893519705007E+16
Volume
2.2718581465932E+24
Surface area
8.3574078820029E+16
Circumference
512401904.80865
Perimeter
326205184
Area
6650613879279616
Diagonal
115330948.8323
Surface area
39903683275677696
Volume
5.4236618105084E+23
Space diagonal
141250988.09509
Perimeter
244653888
Area
2.8798002851088E+15
Altitude
70625494.047544
Surface area
2.8798002851088E+15
Volume
6.3918467417883E+22
Height
38443649.610768