81497825 (number)

81497825 is an odd 8-digits composite number following 81497824 and preceding 81497826. In scientific notation, it is written as 8.1497825 × 10^7. The sum of its digits is 44. It has a total of 4 prime factors and 12 positive divisors. There are 65116560 positive integers (up to 81497825) that are relatively prime to 81497825.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-seven thousand eight hundred twenty-five

Notation

Scientific notation 8.1497825 × 10^7
Engineering notation 8.1497825 × 10^6

Prime Factorization of 81497825

Prime Factorization 5 × 5 × 1087 × 2999

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 16299565
Product of the distinct prime numbers

The prime factorization of 81497825 is 5 × 5 × 1087 × 2999. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 4, 40, 28, 286, 120, 1727, 5733, 9447, 53272, 711238, 942890, 3374559, 7881485, 58101926, 10166743, 343251066, 654683862, 2003810364, 8897731251

Basic calculations (n = 81497825)

Multiplication

n×y
n×2 162995650
n×3 244493475
n×4 325991300
n×5 407489125

Division

n÷y
n÷2 40748912.5
n÷3 27165941.666667
n÷3 20374456.25
n÷5 16299565

Exponentiation

ny
n2 6641895479730625
n3 5.4130003547538E+23
n4 4.4114775563666E+31
n5 3.5952582588019E+39

Nth Root

y√n
2√n 9027.6145797215
3√n 433.55946612839
4√n 95.013759949396
5√n 38.21458993434

Divisors of 81497825

1, 5, 25, 1087, 2999, 5435, 14995, 27175, 74975, 3259913, 16299565, 81497825

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81497824
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81497825 can be divided by 12 positive divisors. The sum of these divisors (counting 81497825) is 1, the average is 0.083333333333333.

Base conversion 81497825

Base System Value
2 Binary 100110110111000111011100001
3 Ternary 12200100111222222
4 Quaternary 10312320323201
5 Quinary 131330412300
6 Senary 12030440425
8 Octal 466707341
10 Decimal 81497825
12 Duodecimal 23363115
16 Hexadecimal 4db8ee1
20 Vigesimal 15974b5
36 Base36 1cis4h

Cryptographic Hash Functions

md5 91cb77b73e7a046590cb5a90b2b87603
sha1 472dc1cac6ee956885ccb8e1246df0c285311ca5
sha256 dd901a8966f2d40a53fe133ea0914a448ded25db560102c9f8bf0937409562b9
sha512 ff9dbc86f9a65c43a3a1ba44cde28b09a5acedd5bad62f07a6979abdd1de0e286f209a1fada0c45ebe859af51294dad3e3539a059a00c8f8d9dfa12de902e583
ripemd-160 77e3731f92dcf9f6d67fabd407d25ba16ed302bb

81497825 as geometric shapes

Circle

Radius = n
Diameter 162995650
Circumference 512065936.60709
Area 2.0866130045033E+16

Sphere

Radius = n
Volume 2.2673922864498E+24
Surface area 8.3464520180132E+16
Circumference 512065936.60709

Square

Length = n
Perimeter 325991300
Area 6641895479730625
Diagonal 115255329.41891

Cube

Length = n
Surface area 39851372878383750
Volume 5.4130003547538E+23
Space diagonal 141158373.60636

Equilateral Triangle

Length = n
Perimeter 244493475
Area 2.8760251073639E+15
Altitude 70579186.803179

Triangular Pyramid

Length = n
Surface area 2.8760251073639E+15
Volume 6.379282095686E+22
Height 38418443.139636