81858093 is an odd 8-digits composite number following 81858092
and preceding 81858094 . In scientific notation, it is written as 8.1858093 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 54572060 positive integers (up to 81858093) that are relatively prime to 81858093.
81858093 has 4 divisors, whose sum is 109144128
The reverse of 81858093 is 39085818
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-one million eight hundred fifty-eight thousand ninety-three
Scientific notation
8.1858093 × 10^7
Engineering notation
8.1858093 × 10^6
Prime Factorization
3 × 27286031
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81858093
Product of the distinct prime numbers
The prime factorization of 81858093 is 3 × 27286031.
Since it has a total of 2 prime factors.
1 , 8 , 74 , 40 , 740 , 401 , 5240 , 6314 , 19121 , 33696 , 760033 , 218390 , 979249 , 4441635 , 25846883 , 13508506 , 797258261 , 945239465 , 2276996717 , 3137075678
n×2
163716186
n×3
245574279
n×4
327432372
n×5
409290465
n÷2
40929046.5
n÷3
27286031
n÷3
20464523.25
n÷5
16371618.6
n2
6700747389596649
n3
5.4851040298711E+23
n4
4.4900015579186E+31
n5
3.6754296509825E+39
2 √n
9047.5462419376
3 √n
434.19738909864
4 √n
95.118590411852
5 √n
38.248316513203
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81858092
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81858093 can be divided by 4 positive divisors.
The sum of these divisors (counting 81858093) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111000010000111000101101
3
Ternary
12201000211012020
4
Quaternary
10320100320231
5
Quinary
131423424333
6
Senary
12042300353
8
Octal
470207055
10
Decimal
81858093
12
Duodecimal
234b76b9
16
Hexadecimal
4e10e2d
20
Vigesimal
15bc54d
36
Base36
1cqi3x
md5
7cff3d1030ebbe7f0d462aa9342ab5c7
sha1
ca348a46bc9b8ee7e099094eff5921e839030e73
sha256
8257afffcf5cb5d0257fc55781df948850dc18f26cdd32d066c2c053b7737d95
sha512
6c5c6fc9ca37721277d328e1df435b48eaeb32e5c363632532253d37fa1be28a7dbd5e8871fba2b53942d987201958f4fb2ad7bc4d255a94ea9f175689033823
ripemd-160
6c47d31bb0b09f1a4329eed878f3ed3f8f8aa725
Diameter
163716186
Circumference
514329567.21134
Area
2.1051018772718E+16
Volume
2.2975950032558E+24
Surface area
8.4204075090871E+16
Circumference
514329567.21134
Perimeter
327432372
Area
6700747389596649
Diagonal
115764825.3106
Surface area
40204484337579894
Volume
5.4851040298711E+23
Space diagonal
141782376.0867
Perimeter
245574279
Area
2.9015087318665E+15
Altitude
70891188.043349
Surface area
2.9015087318665E+15
Volume
6.4642570917259E+22
Height
38588275.103533