81551168 (number)

81551168 is an even 8-digits composite number following 81551167 and preceding 81551169. In scientific notation, it is written as 8.1551168 × 10^7. The sum of its digits is 35. It has a total of 9 prime factors and 56 positive divisors. There are 39603200 positive integers (up to 81551168) that are relatively prime to 81551168.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred fifty-one thousand one hundred sixty-eight

Notation

Scientific notation 8.1551168 × 10^7
Engineering notation 8.1551168 × 10^6

Prime Factorization of 81551168

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 71 × 131 × 137

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 2548474
Product of the distinct prime numbers

The prime factorization of 81551168 is 2 × 2 × 2 × 2 × 2 × 2 × 71 × 131 × 137. Since it has a total of 9 prime factors.

Most popular turbo-numbers

5, 7, 12, 50, 939, 324, 684, 8486, 69820, 597, 44575, 811358, 6509779, 4617603, 6985770, 96603399, 23173093, 954343304, 8974908225, 2615087247

Basic calculations (n = 81551168)

Multiplication

n×y
n×2 163102336
n×3 244653504
n×4 326204672
n×5 407755840

Division

n÷y
n÷2 40775584
n÷3 27183722.666667
n÷3 20387792
n÷5 16310233.6

Exponentiation

ny
n2 6650593002164224
n3 5.4236362721912E+23
n4 4.4230387280436E+31
n5 3.6070397438119E+39

Nth Root

y√n
2√n 9030.5685313827
3√n 433.65403846232
4√n 95.029303540449
5√n 38.219591165672

Divisors of 81551168

1, 2, 4, 8, 16, 32, 64, 71, 131, 137, 142, 262, 274, 284, 524, 548, 568, 1048, 1096, 1136, 2096, 2192, 2272, 4192, 4384, 4544, 8384, 8768, 9301, 9727, 17947, 18602, 19454, 35894, 37204, 38908, 71788, 74408, 77816, 143576, 148816, 155632, 287152, 297632, 311264, 574304, 595264, 622528, 1148608, 1274237, 2548474, 5096948, 10193896, 20387792, 40775584, 81551168

56 divisors

τ Total Divisors 56
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81551167
Sum of the proper positive divisors of n
A Arithmetic Mean 0.017857142857143
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 56
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81551168 can be divided by 56 positive divisors. The sum of these divisors (counting 81551168) is 1, the average is 0.017857142857143.

Base conversion 81551168

Base System Value
2 Binary 100110111000101111101000000
3 Ternary 12200110020011122
4 Quaternary 10313011331000
5 Quinary 131334114133
6 Senary 12031531412
8 Octal 467057500
10 Decimal 81551168
12 Duodecimal 23389b68
16 Hexadecimal 4dc5f40
20 Vigesimal 159dhi8
36 Base36 1cjxa8

Cryptographic Hash Functions

md5 a9aee29a28283e13f8780cca45241ce4
sha1 440539f5b309d5c7b07e61f9f91713e1c5e9a538
sha256 bdda7367788fbefcafa227fb3c171c95dd334ad29ed3a59fc98b20d68aec5cb2
sha512 980ac9c8f329816c775a13ea13066482a47e208c714eb9687cce3499122b99c359b732d8b0191ca1042799c808da6a17ac691430ed5b00356e2c8677e7ad1d15
ripemd-160 08c3438c30d611b8fe798a9febfadf60a204a6f6

81551168 as geometric shapes

Circle

Radius = n
Diameter 163102336
Circumference 512401100.56093
Area 2.0893454117615E+16

Sphere

Radius = n
Volume 2.2718474491279E+24
Surface area 8.3573816470459E+16
Circumference 512401100.56093

Square

Length = n
Perimeter 326204672
Area 6650593002164224
Diagonal 115330767.81297

Cube

Length = n
Surface area 39903558012985344
Volume 5.4236362721912E+23
Space diagonal 141250766.39259

Equilateral Triangle

Length = n
Perimeter 244653504
Area 2.8797912450526E+15
Altitude 70625383.196293

Triangular Pyramid

Length = n
Surface area 2.8797912450526E+15
Volume 6.3918166445929E+22
Height 38443589.270989