81293351 is an odd 8-digits composite number following 81293350
and preceding 81293352 . In scientific notation, it is written as 8.1293351 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 78320032 positive integers (up to 81293351) that are relatively prime to 81293351.
81293351 has 8 divisors, whose sum is 84278880
The reverse of 81293351 is 15339218
Previous prime number is 503
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million two hundred ninety-three thousand three hundred fifty-one
Scientific notation
8.1293351 × 10^7
Engineering notation
8.1293351 × 10^6
Prime Factorization
29 × 503 × 5573
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81293351
Product of the distinct prime numbers
The prime factorization of 81293351 is 29 × 503 × 5573.
Since it has a total of 3 prime factors.
10 , 4 , 26 , 50 , 207 , 275 , 7509 , 2852 , 4661 , 43831 , 908679 , 16822 , 4725515 , 8156523 , 34760908 , 30574880 , 661986116 , 695506486 , 7679178834 , 695827767
n×2
162586702
n×3
243880053
n×4
325173404
n×5
406466755
n÷2
40646675.5
n÷3
27097783.666667
n÷3
20323337.75
n÷5
16258670.2
n2
6608608916809201
n3
5.372359642959E+23
n4
4.367371181533E+31
n5
3.5503823840765E+39
2 √n
9016.2825488113
3 √n
433.19656939813
4 √n
94.954107593149
5 √n
38.195394958884
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
-81293350
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 81293351 can be divided by 8 positive divisors.
The sum of these divisors (counting 81293351) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110000111000000100111
3
Ternary
12122222010111212
4
Quaternary
10312013000213
5
Quinary
131302341401
6
Senary
12022222035
8
Octal
466070047
10
Decimal
81293351
12
Duodecimal
2328491b
16
Hexadecimal
4d87027
20
Vigesimal
1581d7b
36
Base36
1ceecn
md5
623363cfa56bba5412b7004ff585d39c
sha1
d0a5707b54f7908e57471a06d18fca03e37a261a
sha256
117a9e1bcd4fb769fbdfa4472e8b1f40a734f03c826ece37391704bb4bd85d2d
sha512
9017dfe68a53fd9b391e8ae7e00a83c587167b3cf5053ef0cfc7db11dee63d79b86c69d1dd562fb2366947dfeec11e8f3195f9e5a703b98926eb48ab2d9ecc03
ripemd-160
cbebdaf63eae8022a9ff413bcc283b5679a8a06c
Diameter
162586702
Circumference
510781188.57459
Area
2.0761557223496E+16
Volume
2.2503687449016E+24
Surface area
8.3046228893983E+16
Circumference
510781188.57459
Perimeter
325173404
Area
6608608916809201
Diagonal
114966159.51496
Surface area
39651653500855206
Volume
5.372359642959E+23
Space diagonal
140804214.24953
Perimeter
243880053
Area
2.8616116028166E+15
Altitude
70402107.124765
Surface area
2.8616116028166E+15
Volume
6.3313865575154E+22
Height
38322053.171652