81490179 is an odd 8-digits composite number following 81490178
and preceding 81490180 . In scientific notation, it is written as 8.1490179 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 53561480 positive integers (up to 81490179) that are relatively prime to 81490179.
81490179 has 8 divisors, whose sum is 110184192
The reverse of 81490179 is 97109418
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-one million four hundred ninety thousand one hundred seventy-nine
Scientific notation
8.1490179 × 10^7
Engineering notation
8.1490179 × 10^6
Prime Factorization
3 × 71 × 382583
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81490179
Product of the distinct prime numbers
The prime factorization of 81490179 is 3 × 71 × 382583.
Since it has a total of 3 prime factors.
6 , 8 , 26 , 86 , 13 , 346 , 9528 , 8447 , 66113 , 35677 , 631398 , 313682 , 2370272 , 2878637 , 30261879 , 52044809 , 396517916 , 719347118 , 6202789026 , 2856968417
n×2
162980358
n×3
244470537
n×4
325960716
n×5
407450895
n÷2
40745089.5
n÷3
27163393
n÷3
20372544.75
n÷5
16298035.8
n2
6640649273452041
n3
5.4114769796983E+23
n4
4.4098222772999E+31
n5
3.5935720673536E+39
2 √n
9027.1910913639
3 √n
433.54590707797
4 √n
95.011531359956
5 √n
38.213872860675
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
-81490178
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 81490179 can be divided by 8 positive divisors.
The sum of these divisors (counting 81490179) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110110111000100000011
3
Ternary
12200100010111210
4
Quaternary
10312313010003
5
Quinary
131330141204
6
Senary
12030341203
8
Octal
466670403
10
Decimal
81490179
12
Duodecimal
2335a803
16
Hexadecimal
4db7103
20
Vigesimal
159658j
36
Base36
1cim83
md5
3d1213d70037289fc5974fb723589706
sha1
12817dee91351a6b34b4e68ab115aefe7ae4444a
sha256
e1a9042b0908066802f47efbad4a39bafe4718e5b3e0981e8866d81ebcd2eaaa
sha512
ae62ea947b24e9b9ae2d95efe079fe7dd6276183bd07fbc470bf2c9978259e0dbc4e80bfaeb5bcef4da5456fd7852fb105cafc8cad1113f343a839728543636d
ripemd-160
af0fd248fc82e760838fe1ea40726774b3fce93f
Diameter
162980358
Circumference
512017895.37223
Area
2.0862214972543E+16
Volume
2.2667541765987E+24
Surface area
8.3448859890173E+16
Circumference
512017895.37223
Perimeter
325960716
Area
6640649273452041
Diagonal
115244516.34201
Surface area
39843895640712246
Volume
5.4114769796983E+23
Space diagonal
141145130.34588
Perimeter
244470537
Area
2.8754854842161E+15
Altitude
70572565.172941
Surface area
2.8754854842161E+15
Volume
6.3774867809659E+22
Height
38414838.78067