81551115 (number)

81551115 is an odd 8-digits composite number following 81551114 and preceding 81551116. In scientific notation, it is written as 8.1551115 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors. There are 43411200 positive integers (up to 81551115) that are relatively prime to 81551115.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred fifty-one thousand one hundred fifteen

Notation

Scientific notation 8.1551115 × 10^7
Engineering notation 8.1551115 × 10^6

Prime Factorization of 81551115

Prime Factorization 3 × 5 × 3 × 647 × 2801

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 27183705
Product of the distinct prime numbers

The prime factorization of 81551115 is 3 × 5 × 3 × 647 × 2801. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 2, 91, 69, 937, 391, 8273, 8712, 4234, 91845, 819148, 554393, 8382378, 2162939, 11618588, 80026242, 712188822, 934080112, 9740885171, 1321418374

Basic calculations (n = 81551115)

Multiplication

n×y
n×2 163102230
n×3 244653345
n×4 326204460
n×5 407755575

Division

n÷y
n÷2 40775557.5
n÷3 27183705
n÷3 20387778.75
n÷5 16310223

Exponentiation

ny
n2 6650584357743225
n3 5.4236256977552E+23
n4 4.4230272299459E+31
n5 3.6070280227745E+39

Nth Root

y√n
2√n 9030.5655969048
3√n 433.65394451857
4√n 95.029288100589
5√n 38.219586197898

Divisors of 81551115

1, 3, 5, 9, 15, 45, 647, 1941, 2801, 3235, 5823, 8403, 9705, 14005, 25209, 29115, 42015, 126045, 1812247, 5436741, 9061235, 16310223, 27183705, 81551115

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81551114
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81551115 can be divided by 24 positive divisors. The sum of these divisors (counting 81551115) is 1, the average is 0.041666666666667.

Base conversion 81551115

Base System Value
2 Binary 100110111000101111100001011
3 Ternary 12200110020002200
4 Quaternary 10313011330023
5 Quinary 131334113430
6 Senary 12031531243
8 Octal 467057413
10 Decimal 81551115
12 Duodecimal 23389b23
16 Hexadecimal 4dc5f0b
20 Vigesimal 159dhff
36 Base36 1cjx8r

Cryptographic Hash Functions

md5 1ba0a4ee5b2d8647f7c1c0b8113ae990
sha1 a9425fd5571b9d587fcdf8c66887da193e0dc8ad
sha256 0e850f2a396d7b0feaeea771d7f98ca2227e4d15c22a609c2ef0166c140c52da
sha512 71f788dcff4c5b862a27efccea0f71fbf53b12c96ba17ad67baf835c596ad8b82e793a9003cb0b322ef2a70042874df10c2de52d35ba94c53ac0620cdbebe13e
ripemd-160 adbdf0ecbdf9dfb5160879a2558a328060eb0b5c

81551115 as geometric shapes

Circle

Radius = n
Diameter 163102230
Circumference 512400767.55211
Area 2.0893426960365E+16

Sphere

Radius = n
Volume 2.2718430197185E+24
Surface area 8.3573707841461E+16
Circumference 512400767.55211

Square

Length = n
Perimeter 326204460
Area 6650584357743225
Diagonal 115330692.85965

Cube

Length = n
Surface area 39903506146459350
Volume 5.4236256977552E+23
Space diagonal 141250674.59389

Equilateral Triangle

Length = n
Perimeter 244653345
Area 2.8797875019085E+15
Altitude 70625337.296946

Triangular Pyramid

Length = n
Surface area 2.8797875019085E+15
Volume 6.3918041825005E+22
Height 38443564.286549