81509898 (number)

81509898 is an even 8-digits composite number following 81509897 and preceding 81509899. In scientific notation, it is written as 8.1509898 × 10^7. The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors. There are 27141600 positive integers (up to 81509898) that are relatively prime to 81509898.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred nine thousand eight hundred ninety-eight

Notation

Scientific notation 8.1509898 × 10^7
Engineering notation 8.1509898 × 10^6

Prime Factorization of 81509898

Prime Factorization 2 × 3 × 1033 × 13151

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81509898
Product of the distinct prime numbers

The prime factorization of 81509898 is 2 × 3 × 1033 × 13151. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 7, 94, 84, 875, 823, 4570, 2616, 37439, 91321, 984423, 768667, 1486235, 3252020, 18921830, 31036892, 150027992, 88037308, 419171754, 2152984666

Basic calculations (n = 81509898)

Multiplication

n×y
n×2 163019796
n×3 244529694
n×4 326039592
n×5 407549490

Division

n÷y
n÷2 40754949
n÷3 27169966
n÷3 20377474.5
n÷5 16301979.6

Exponentiation

ny
n2 6643863471970404
n3 5.4154063392623E+23
n4 4.4140921834183E+31
n5 3.5979220363302E+39

Nth Root

y√n
2√n 9028.2832255086
3√n 433.58087408205
4√n 95.017278562947
5√n 38.215722080893

Divisors of 81509898

1, 2, 3, 6, 1033, 2066, 3099, 6198, 13151, 26302, 39453, 78906, 13584983, 27169966, 40754949, 81509898

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 -81509897
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 81509898 can be divided by 16 positive divisors. The sum of these divisors (counting 81509898) is 1, the average is 0.0625.

Base conversion 81509898

Base System Value
2 Binary 100110110111011111000001010
3 Ternary 12200101010120010
4 Quaternary 10312323320022
5 Quinary 131331304043
6 Senary 12031012350
8 Octal 466737012
10 Decimal 81509898
12 Duodecimal 2336a0b6
16 Hexadecimal 4dbbe0a
20 Vigesimal 1598eei
36 Base36 1cj1fu

Cryptographic Hash Functions

md5 a741e744f065ac9e884925ec9082a3a0
sha1 d3eb45759fd732db0530edae0b8bc76b2f3a9a05
sha256 b447977c2735008beb76140489e15d7e014a707a19b8d93359cbd05fb592f64e
sha512 3251db972cc9a59f12399d0f3a271896a5df1a87ee551e268c230a65359258275fd03bb8f624d5a1adc9ab794cf6e9796d7ffd89fd8ce4e9b11de817a0db41ab
ripemd-160 d27cbdd4b56008693eec7558a7bac673488a5641

81509898 as geometric shapes

Circle

Radius = n
Diameter 163019796
Circumference 512141793.50331
Area 2.0872312674996E+16

Sphere

Radius = n
Volume 2.268400102884E+24
Surface area 8.3489250699983E+16
Circumference 512141793.50331

Square

Length = n
Perimeter 326039592
Area 6643863471970404
Diagonal 115272403.21925

Cube

Length = n
Surface area 39863180831822424
Volume 5.4154063392623E+23
Space diagonal 141179284.65576

Equilateral Triangle

Length = n
Perimeter 244529694
Area 2.8768772730009E+15
Altitude 70589642.327878

Triangular Pyramid

Length = n
Surface area 2.8768772730009E+15
Volume 6.3821175756217E+22
Height 38424134.406416