81497452 is an even 8-digits composite number following 81497451
and preceding 81497453 . In scientific notation, it is written as 8.1497452 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 6 positive divisors.
There are 40748724 positive integers (up to 81497452) that are relatively prime to 81497452.
81497452 has 6 divisors, whose sum is 142620548
The reverse of 81497452 is 25479418
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million four hundred ninety-seven thousand four hundred fifty-two
Scientific notation
8.1497452 × 10^7
Engineering notation
8.1497452 × 10^6
Prime Factorization
2 × 2 × 20374363
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
40748726
Product of the distinct prime numbers
The prime factorization of 81497452 is 2 × 2 × 20374363.
Since it has a total of 3 prime factors.
7 , 10 , 45 , 32 , 307 , 939 , 4200 , 4170 , 2659 , 55041 , 267090 , 959530 , 8302000 , 8088751 , 21982979 , 45706627 , 27385417 , 926390935 , 7603226500 , 412079329
n×2
162994904
n×3
244492356
n×4
325989808
n×5
407487260
n÷2
40748726
n÷3
27165817.333333
n÷3
20374363
n÷5
16299490.4
n2
6641834682492304
n3
5.4129260322835E+23
n4
4.4113967949558E+31
n5
3.5951759854986E+39
2 √n
9027.5939208629
3 √n
433.55880468772
4 √n
95.013651234246
5 √n
38.214554954098
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81497451
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81497452 can be divided by 6 positive divisors.
The sum of these divisors (counting 81497452) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100110110111000110101101100
3
Ternary
12200100111111011
4
Quaternary
10312320311230
5
Quinary
131330404302
6
Senary
12030435004
8
Octal
466706554
10
Decimal
81497452
12
Duodecimal
23362a64
16
Hexadecimal
4db8d6c
20
Vigesimal
15973cc
36
Base36
1ciru4
md5
fd551be380a117c04018949f320695cc
sha1
4a0b2b1795f1a1affa7e18e42a2c98e95cea62b3
sha256
b7d0f12a461f76507a286d0628dc6eece943025bbc812ab816b77df83ddb4bb4
sha512
a7a6230545173cddc34b1cbdd68bdf1656378970e645b5d585f6d790add407ae0d9e6782e78f61008551cabb61b869edc5ebe13b7d07d6f06874c65be5d9e4bd
ripemd-160
9c1943723e4a08f113dc6e1425b44c379273b5a3
Diameter
162994904
Circumference
512063592.97897
Area
2.0865939044876E+16
Volume
2.2673611543262E+24
Surface area
8.3463756179503E+16
Circumference
512063592.97897
Perimeter
325989808
Area
6641834682492304
Diagonal
115254801.91725
Surface area
39851008094953824
Volume
5.4129260322835E+23
Space diagonal
141157727.55141
Perimeter
244492356
Area
2.8759987813874E+15
Altitude
70578863.775703
Surface area
2.8759987813874E+15
Volume
6.3791945058148E+22
Height
38418267.30575