81489415 (number)

81489415 is an odd 8-digits composite number following 81489414 and preceding 81489416. In scientific notation, it is written as 8.1489415 × 10^7. The sum of its digits is 40. It has a total of 5 prime factors and 32 positive divisors. There are 52185600 positive integers (up to 81489415) that are relatively prime to 81489415.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred eighty-nine thousand four hundred fifteen

Notation

Scientific notation 8.1489415 × 10^7
Engineering notation 8.1489415 × 10^6

Prime Factorization of 81489415

Prime Factorization 5 × 17 × 7 × 907 × 151

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81489415
Product of the distinct prime numbers

The prime factorization of 81489415 is 5 × 17 × 7 × 907 × 151. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 2, 42, 56, 871, 690, 2503, 6487, 52070, 43321, 261609, 602248, 1971203, 9123044, 34855342, 20987002, 529295236, 17057236, 8453738067, 370776702

Basic calculations (n = 81489415)

Multiplication

n×y
n×2 162978830
n×3 244468245
n×4 325957660
n×5 407447075

Division

n÷y
n÷2 40744707.5
n÷3 27163138.333333
n÷3 20372353.75
n÷5 16297883

Exponentiation

ny
n2 6640524757042225
n3 5.4113247774439E+23
n4 4.4096569048891E+31
n5 3.5934036153012E+39

Nth Root

y√n
2√n 9027.1487746686
3√n 433.54455219034
4√n 95.011308667277
5√n 38.213801206621

Divisors of 81489415

1, 5, 7, 17, 35, 85, 119, 151, 595, 755, 907, 1057, 2567, 4535, 5285, 6349, 12835, 15419, 17969, 31745, 77095, 89845, 107933, 136957, 539665, 684785, 958699, 2328269, 4793495, 11641345, 16297883, 81489415

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81489414
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81489415 can be divided by 32 positive divisors. The sum of these divisors (counting 81489415) is 1, the average is 0.03125.

Base conversion 81489415

Base System Value
2 Binary 100110110110110111000000111
3 Ternary 12200100002110111
4 Quaternary 10312312320013
5 Quinary 131330130130
6 Senary 12030333451
8 Octal 466667007
10 Decimal 81489415
12 Duodecimal 2335a287
16 Hexadecimal 4db6e07
20 Vigesimal 15963af
36 Base36 1cilmv

Cryptographic Hash Functions

md5 e948fa17c3cbaee7c17f98df44c408a3
sha1 2072f5685582986550caf97b343780be24864d28
sha256 55b461857a186b7b400a87ca31da62aadf6d0909dfec9780b56e22b0439227ea
sha512 4ae9676bde75a494f605f75ce077288955317d87d262c1732c23b12c372302d6265ee8acbade0fc8b6c8550468ed32df280a153bec9f489b4586eaad5d816f98
ripemd-160 9b3a1903668ede0fc7803377fd55e4d0ca9510bf

81489415 as geometric shapes

Circle

Radius = n
Diameter 162978830
Circumference 512013095.01866
Area 2.0861823792705E+16

Sphere

Radius = n
Volume 2.2666904222675E+24
Surface area 8.344729517082E+16
Circumference 512013095.01866

Square

Length = n
Perimeter 325957660
Area 6640524757042225
Diagonal 115243435.88285

Cube

Length = n
Surface area 39843148542253350
Volume 5.4113247774439E+23
Space diagonal 141143807.05907

Equilateral Triangle

Length = n
Perimeter 244468245
Area 2.875431567029E+15
Altitude 70571903.529533

Triangular Pyramid

Length = n
Surface area 2.875431567029E+15
Volume 6.3773074088889E+22
Height 38414478.627617