81453445 is an odd 8-digits composite number following 81453444
and preceding 81453446 . In scientific notation, it is written as 8.1453445 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 65106624 positive integers (up to 81453445) that are relatively prime to 81453445.
81453445 has 8 divisors, whose sum is 97828344
The reverse of 81453445 is 54435418
Previous prime number is 1277
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million four hundred fifty-three thousand four hundred forty-five
Scientific notation
8.1453445 × 10^7
Engineering notation
8.1453445 × 10^6
Prime Factorization
5 × 1277 × 12757
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81453445
Product of the distinct prime numbers
The prime factorization of 81453445 is 5 × 1277 × 12757.
Since it has a total of 3 prime factors.
9 , 3 , 34 , 92 , 500 , 994 , 1019 , 7431 , 52359 , 60067 , 686173 , 740107 , 793625 , 8770061 , 43737450 , 38115305 , 522123145 , 429488598 , 1985465600 , 781276137
n×2
162906890
n×3
244360335
n×4
325813780
n×5
407267225
n÷2
40726722.5
n÷3
27151148.333333
n÷3
20363361.25
n÷5
16290689
n2
6634663702368025
n3
5.4041621497433E+23
n4
4.401876244352E+31
n5
3.5854798456613E+39
2 √n
9025.1562313347
3 √n
433.48075293237
4 √n
95.000822266624
5 √n
38.210427042779
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
-81453444
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 81453445 can be divided by 8 positive divisors.
The sum of these divisors (counting 81453445) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110101110000110000101
3
Ternary
12200021021010021
4
Quaternary
10312232012011
5
Quinary
131323002240
6
Senary
12025455141
8
Octal
466560605
10
Decimal
81453445
12
Duodecimal
233414b1
16
Hexadecimal
4dae185
20
Vigesimal
1591dc5
36
Base36
1chtvp
md5
26f65ea08f04e5204febcb6352d34727
sha1
09a8cf760571bfd6416a4cea5540b63653aa38e9
sha256
4bb23ab4a1308158b9961437805e1b9b1ad043f2885668ce2b5aef00215ae4ce
sha512
f25ec8437a3ed16ca25fc9ae27b4dfb81209786bca2f29cbe82819452affffe94d84de5e1d0e9b5094cf8a3064eb52132910e74d4e166a0b4d92e0828bf22910
ripemd-160
11de6b9fbf06923214779e480fdc44033f45fc4f
Diameter
162906890
Circumference
511787088.84316
Area
2.0843410746398E+16
Volume
2.2636901477922E+24
Surface area
8.3373642985593E+16
Circumference
511787088.84316
Perimeter
325813780
Area
6634663702368025
Diagonal
115192566.62101
Surface area
39807982214208150
Volume
5.4041621497433E+23
Space diagonal
141081505.19152
Perimeter
244360335
Area
2.8728936559086E+15
Altitude
70540752.595759
Surface area
2.8728936559086E+15
Volume
6.3688661711919E+22
Height
38397522.207004