81497850 is an even 8-digits composite number following 81497849
and preceding 81497851 . In scientific notation, it is written as 8.1497850 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 18627840 positive integers (up to 81497850) that are relatively prime to 81497850.
81497850 has 8 divisors, whose sum is 122481204
The reverse of 81497850 is 05879418
Previous prime number is 525
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-one million four hundred ninety-seven thousand eight hundred fifty
Scientific notation
8.1497850 × 10^7
Engineering notation
8.1497850 × 10^6
Prime Factorization
2 × 525 × 77617
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81497850
Product of the distinct prime numbers
The prime factorization of 81497850 is 2 × 525 × 77617.
Since it has a total of 3 prime factors.
9 , 8 , 82 , 43 , 159 , 603 , 4113 , 1616 , 66735 , 38778 , 591599 , 379078 , 6296235 , 4778771 , 62581163 , 14755583 , 785201335 , 607105089 , 4783404411 , 9222428585
n×2
162995700
n×3
244493550
n×4
325991400
n×5
407489250
n÷2
40748925
n÷3
27165950
n÷3
20374462.5
n÷5
16299570
n2
6641899554622500
n3
5.4130053361769E+23
n4
4.4114829693695E+31
n5
3.5952637731523E+39
2 √n
9027.6159643618
3 √n
433.5595104608
4 √n
95.013767235921
5 √n
38.214592278856
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
-81497849
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 81497850 can be divided by 8 positive divisors.
The sum of these divisors (counting 81497850) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110111000111011111010
3
Ternary
12200100112000220
4
Quaternary
10312320323322
5
Quinary
131330412400
6
Senary
12030440510
8
Octal
466707372
10
Decimal
81497850
12
Duodecimal
23363136
16
Hexadecimal
4db8efa
20
Vigesimal
15974ca
36
Base36
1cis56
md5
63db56f522ba1a1ef6fcf2492bee5d60
sha1
c247bea06017212ffaeb3d8f50b7c35be24c97be
sha256
070a8185809dbe097c4001e1f48b85d1f4b295a660d5a1c8178ca640822415f3
sha512
ebc7bcd4df9b77c6bf08c7f44e22b312d6cf4a3f728ed949cfccdcb9bf4e3ed6885c78e31abc9912043025011eaba6a3d0b5e7c74c91cca5a9caa40ea27a84df
ripemd-160
704e4c4ae3abb982bd036e47809693f0c10a9301
Diameter
162995700
Circumference
512066093.68673
Area
2.0866142846683E+16
Volume
2.2673943730634E+24
Surface area
8.3464571386733E+16
Circumference
512066093.68673
Perimeter
325991400
Area
6641899554622500
Diagonal
115255364.77425
Surface area
39851397327735000
Volume
5.4130053361769E+23
Space diagonal
141158416.90763
Perimeter
244493550
Area
2.8760268718438E+15
Altitude
70579208.453814
Surface area
2.8760268718438E+15
Volume
6.3792879663494E+22
Height
38418454.924749