81451058 is an even 8-digits composite number following 81451057
and preceding 81451059 . In scientific notation, it is written as 8.1451058 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 37062480 positive integers (up to 81451058) that are relatively prime to 81451058.
81451058 has 16 divisors, whose sum is 133430976
The reverse of 81451058 is 85015418
Previous prime number is 71
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million four hundred fifty-one thousand fifty-eight
Scientific notation
8.1451058 × 10^7
Engineering notation
8.1451058 × 10^6
Prime Factorization
2 × 13 × 71 × 44123
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81451058
Product of the distinct prime numbers
The prime factorization of 81451058 is 2 × 13 × 71 × 44123.
Since it has a total of 4 prime factors.
8 , 1 , 41 , 79 , 399 , 308 , 924 , 3831 , 85312 , 40064 , 457243 , 554046 , 6819017 , 5010984 , 91129446 , 43274478 , 882299254 , 338949865 , 2609931198 , 9104204725
n×2
162902116
n×3
244353174
n×4
325804232
n×5
407255290
n÷2
40725529
n÷3
27150352.666667
n÷3
20362764.5
n÷5
16290211.6
n2
6634274849319364
n3
5.4036870553985E+23
n4
4.4013602776311E+31
n5
3.5849545125223E+39
2 √n
9025.0239888878
3 √n
433.47651849447
4 √n
95.00012625722
5 √n
38.210203088203
1 , 2 , 13 , 26 , 71 , 142 , 923 , 1846 , 44123 , 88246 , 573599 , 1147198 , 3132733 , 6265466 , 40725529 , 81451058
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81451057
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81451058 can be divided by 16 positive divisors.
The sum of these divisors (counting 81451058) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110101101100000110010
3
Ternary
12200021010211212
4
Quaternary
10312231200302
5
Quinary
131322413213
6
Senary
12025440122
8
Octal
466554062
10
Decimal
81451058
12
Duodecimal
23340042
16
Hexadecimal
4dad832
20
Vigesimal
15917ci
36
Base36
1chs1e
md5
0524c2e471ab6655cfec5b8fdcc54c02
sha1
6355312969113be0d31fcc72f47dbad33cab005c
sha256
34e1482c1eeaac7b12bba61496d8f993906c1e235a86f39752a61a687d6b67ae
sha512
d75a3e4b219d0877eb78cc50862f7b97a1cf7bcc46c01adcaa2cd3119bc52b7989e08ea48ad690dffd387184568839cb2d6a1594c3b4d1ce63bdda1b6f157211
ripemd-160
a7090efabbe15d5350b9f22c08e1e73d2bc9ea66
Diameter
162902116
Circumference
511772090.87983
Area
2.0842189128517E+16
Volume
2.2634911407384E+24
Surface area
8.3368756514069E+16
Circumference
511772090.87983
Perimeter
325804232
Area
6634274849319364
Diagonal
115189190.89324
Surface area
39805649095916184
Volume
5.4036870553985E+23
Space diagonal
141077370.78624
Perimeter
244353174
Area
2.8727252775994E+15
Altitude
70538685.39312
Surface area
2.8727252775994E+15
Volume
6.3683062671371E+22
Height
38396396.964413