81490168 (number)

81490168 is an even 8-digits composite number following 81490167 and preceding 81490169. In scientific notation, it is written as 8.1490168 × 10^7. The sum of its digits is 37. It has a total of 5 prime factors and 16 positive divisors. There are 40692288 positive integers (up to 81490168) that are relatively prime to 81490168.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety thousand one hundred sixty-eight

Notation

Scientific notation 8.1490168 × 10^7
Engineering notation 8.1490168 × 10^6

Prime Factorization of 81490168

Prime Factorization 2 × 2 × 2 × 823 × 12377

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20372542
Product of the distinct prime numbers

The prime factorization of 81490168 is 2 × 2 × 2 × 823 × 12377. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 1, 24, 72, 118, 747, 1329, 5642, 12682, 35076, 454641, 943597, 7824915, 5753243, 42131053, 77199114, 759699883, 901652584, 5668261572, 9031595365

Basic calculations (n = 81490168)

Multiplication

n×y
n×2 162980336
n×3 244470504
n×4 325960672
n×5 407450840

Division

n÷y
n÷2 40745084
n÷3 27163389.333333
n÷3 20372542
n÷5 16298033.6

Exponentiation

ny
n2 6640647480668224
n3 5.4114747882843E+23
n4 4.4098198962505E+31
n5 3.593569641952E+39

Nth Root

y√n
2√n 9027.1904820935
3√n 433.54588757049
4√n 95.011528153659
5√n 38.213871829011

Divisors of 81490168

1, 2, 4, 8, 823, 1646, 3292, 6584, 12377, 24754, 49508, 99016, 10186271, 20372542, 40745084, 81490168

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 -81490167
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 81490168 can be divided by 16 positive divisors. The sum of these divisors (counting 81490168) is 1, the average is 0.0625.

Base conversion 81490168

Base System Value
2 Binary 100110110110111000011111000
3 Ternary 12200100010111101
4 Quaternary 10312313003320
5 Quinary 131330141133
6 Senary 12030341144
8 Octal 466670370
10 Decimal 81490168
12 Duodecimal 2335a7b4
16 Hexadecimal 4db70f8
20 Vigesimal 1596588
36 Base36 1cim7s

Cryptographic Hash Functions

md5 283f38850225d7de6b649317e343731f
sha1 dafcabdec35a37b78b6275c625d3880b251b2d79
sha256 2c33b0f9fd09e61a0cda02e2bb6b16fa3ed5ae35b869570026c51ce7b4c34b1d
sha512 fda1c0cfd31dd42bdf789fcc5bfaac37adc26ed8bc2dc0afae5a56e5190dd204b7bddce25699197d5e159ee9ac9b4f07098efb955d0c5f57e44d33c2ae12a1c9
ripemd-160 3d37e0763ac3e0764d3857aecc93b97fe3772bcc

81490168 as geometric shapes

Circle

Radius = n
Diameter 162980336
Circumference 512017826.2572
Area 2.0862209340347E+16

Sphere

Radius = n
Volume 2.2667532586614E+24
Surface area 8.3448837361387E+16
Circumference 512017826.2572

Square

Length = n
Perimeter 325960672
Area 6640647480668224
Diagonal 115244500.78566

Cube

Length = n
Surface area 39843884884009344
Volume 5.4114747882843E+23
Space diagonal 141145111.29332

Equilateral Triangle

Length = n
Perimeter 244470504
Area 2.8754847079179E+15
Altitude 70572555.646662

Triangular Pyramid

Length = n
Surface area 2.8754847079179E+15
Volume 6.3774841983598E+22
Height 38414833.595221