81497154 is an even 8-digits composite number following 81497153
and preceding 81497155 . In scientific notation, it is written as 8.1497154 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 26587632 positive integers (up to 81497154) that are relatively prime to 81497154.
81497154 has 16 divisors, whose sum is 166462848
The reverse of 81497154 is 45179418
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-one million four hundred ninety-seven thousand one hundred fifty-four
Scientific notation
8.1497154 × 10^7
Engineering notation
8.1497154 × 10^6
Prime Factorization
2 × 3 × 47 × 288997
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81497154
Product of the distinct prime numbers
The prime factorization of 81497154 is 2 × 3 × 47 × 288997.
Since it has a total of 4 prime factors.
7 , 8 , 90 , 31 , 889 , 245 , 8701 , 9552 , 60443 , 50566 , 196007 , 916186 , 8558673 , 3079419 , 84128863 , 90994811 , 580257259 , 505196325 , 219444455 , 62379855
n×2
162994308
n×3
244491462
n×4
325988616
n×5
407485770
n÷2
40748577
n÷3
27165718
n÷3
20374288.5
n÷5
16299430.8
n2
6641786110099716
n3
5.4128666544986E+23
n4
4.4113322732314E+31
n5
3.5951102561671E+39
2 √n
9027.5774158962
3 √n
433.55827624305
4 √n
95.013564378442
5 √n
38.214527007325
1 , 2 , 3 , 6 , 47 , 94 , 141 , 282 , 288997 , 577994 , 866991 , 1733982 , 13582859 , 27165718 , 40748577 , 81497154
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81497153
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81497154 can be divided by 16 positive divisors.
The sum of these divisors (counting 81497154) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110111000110001000010
3
Ternary
12200100111002010
4
Quaternary
10312320301002
5
Quinary
131330402104
6
Senary
12030433350
8
Octal
466706102
10
Decimal
81497154
12
Duodecimal
23362856
16
Hexadecimal
4db8c42
20
Vigesimal
15972he
36
Base36
1cirlu
md5
138660575ea179cb2debbb7738c8f565
sha1
44aa8764d7a41e702784e269da72f2c3f022a31f
sha256
22cfb465c01c435c86d30d6f567fe0e828ebf4d89ff25fe5fdd2083fb56ba84d
sha512
c7995dada64b5c43aa657e99dd0a3c59ac5efddbdacf8651680e184113f292242c17064fc2e163014e874e70eaea5feb106c27a45a9f07beb1546b91790a34d2
ripemd-160
655b573e98554e3d41ddbb94e2a2b666d74cb979
Diameter
162994308
Circumference
512061720.58975
Area
2.0865786450204E+16
Volume
2.2673362822179E+24
Surface area
8.3463145800816E+16
Circumference
512061720.58975
Perimeter
325988616
Area
6641786110099716
Diagonal
115254380.48161
Surface area
39850716660598296
Volume
5.4128666544986E+23
Space diagonal
141157211.40027
Perimeter
244491462
Area
2.8759777489245E+15
Altitude
70578605.700133
Surface area
2.8759777489245E+15
Volume
6.3791245284241E+22
Height
38418126.827203