81594974 is an even 8-digits composite number following 81594973
and preceding 81594975 . In scientific notation, it is written as 8.1594974 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 40706176 positive integers (up to 81594974) that are relatively prime to 81594974.
81594974 has 8 divisors, whose sum is 122666400
The reverse of 81594974 is 47949518
Previous prime number is 449
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighty-one million five hundred ninety-four thousand nine hundred seventy-four
Scientific notation
8.1594974 × 10^7
Engineering notation
8.1594974 × 10^6
Prime Factorization
2 × 449 × 90863
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81594974
Product of the distinct prime numbers
The prime factorization of 81594974 is 2 × 449 × 90863.
Since it has a total of 3 prime factors.
8 , 5 , 8 , 71 , 406 , 339 , 9504 , 8661 , 20937 , 17885 , 57871 , 966533 , 2876519 , 341029 , 28368687 , 36392678 , 18459104 , 657573127 , 3317926162 , 3041797424
n×2
163189948
n×3
244784922
n×4
326379896
n×5
407974870
n÷2
40797487
n÷3
27198324.666667
n÷3
20398743.5
n÷5
16318994.8
n2
6657739782060676
n3
5.4323810441601E+23
n4
4.4325499005633E+31
n5
3.6167379389017E+39
2 √n
9032.9936344492
3 √n
433.73167171957
4 √n
95.042062448419
5 √n
38.223696288461
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
-81594973
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 81594974 can be divided by 8 positive divisors.
The sum of these divisors (counting 81594974) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111010000101001011110
3
Ternary
12200112110021002
4
Quaternary
10313100221132
5
Quinary
131342014344
6
Senary
12032510302
8
Octal
467205136
10
Decimal
81594974
12
Duodecimal
233ab392
16
Hexadecimal
4dd0a5e
20
Vigesimal
159j78e
36
Base36
1ckv32
md5
f63843721b673f78cd1b39af3787e245
sha1
cc3a33c4ef9d35a6f057118c477b605eaadbdf95
sha256
38bb0d306e2325291321f40dc1e5bebda43c6c86e714a0b6298dba7266ead19c
sha512
610a83378de2a2866c22c23c7d18e573a5fa9859b19b597a02472b1758bbb63c0ecb90d32ebd7a8224bf139b63b43122aa36a68323ce66569b979826e2866767
ripemd-160
cecae02021002ce46f2a47f59b374c7936f43203
Diameter
163189948
Circumference
512676341.7765
Area
2.0915906388834E+16
Volume
2.2755104506445E+24
Surface area
8.3663625555337E+16
Circumference
512676341.7765
Perimeter
326379896
Area
6657739782060676
Diagonal
115392718.85228
Surface area
39946438692364056
Volume
5.4323810441601E+23
Space diagonal
141326640.61026
Perimeter
244784922
Area
2.8828858915254E+15
Altitude
70663320.305131
Surface area
2.8828858915254E+15
Volume
6.4021224571914E+22
Height
38464239.617427