81550140 (number)

81550140 is an even 8-digits composite number following 81550139 and preceding 81550141. In scientific notation, it is written as 8.1550140 × 10^7. The sum of its digits is 24. It has a total of 5 prime factors and 24 positive divisors. There are 18639936 positive integers (up to 81550140) that are relatively prime to 81550140.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1550140 × 10^7
Engineering notation 8.1550140 × 10^6

Prime Factorization of 81550140

Prime Factorization 2 × 2 × 15 × 7 × 194167

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40775070
Product of the distinct prime numbers

The prime factorization of 81550140 is 2 × 2 × 15 × 7 × 194167. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 8, 52, 58, 983, 31, 3823, 7537, 42019, 24021, 326699, 766238, 2409331, 5562569, 40727426, 4469704, 715261019, 814224922, 1493149817, 7150694337

Basic calculations (n = 81550140)

Multiplication

n×y
n×2 163100280
n×3 244650420
n×4 326200560
n×5 407750700

Division

n÷y
n÷2 40775070
n÷3 27183380
n÷3 20387535
n÷5 16310028

Exponentiation

ny
n2 6650425334019600
n3 5.4234311704885E+23
n4 4.422815712337E+31
n5 3.6068124053528E+39

Nth Root

y√n
2√n 9030.5116134137
3√n 433.6522163007
4√n 95.029004064095
5√n 38.219494809142

Divisors of 81550140

1, 2, 4, 7, 14, 15, 28, 30, 60, 105, 210, 420, 194167, 388334, 776668, 1359169, 2718338, 2912505, 5436676, 5825010, 11650020, 20387535, 40775070, 81550140

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 -81550139
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 81550140 can be divided by 24 positive divisors. The sum of these divisors (counting 81550140) is 1, the average is 0.041666666666667.

Base conversion 81550140

Base System Value
2 Binary 100110111000101101100111100
3 Ternary 12200110011202120
4 Quaternary 10313011230330
5 Quinary 131334101030
6 Senary 12031522540
8 Octal 467055474
10 Decimal 81550140
12 Duodecimal 23389450
16 Hexadecimal 4dc5b3c
20 Vigesimal 159df70
36 Base36 1cjwho

Cryptographic Hash Functions

md5 85b9a40d5f04de1f32971617de0e0dbf
sha1 2f44159c675e375f345e6689db43f53ac90d6a25
sha256 a3a2c0bac37ac7bf156cd4cb335ca4f43a4fdf25099caf3a3283d5169b39a302
sha512 08e88ad24fa1b0ab0f960f7bd5653c476de0245c8882ace50b4beddb081ca12d5f7c0532609755054f901c85c5e368defa833357e67735d8c21228c60c27dc8d
ripemd-160 09d216490846e7137174fabeed9308cf98eaf7f8

81550140 as geometric shapes

Circle

Radius = n
Diameter 163100280
Circumference 512394641.44644
Area 2.0892927372603E+16

Sphere

Radius = n
Volume 2.2717615363275E+24
Surface area 8.3571709490414E+16
Circumference 512394641.44644

Square

Length = n
Perimeter 326200560
Area 6650425334019600
Diagonal 115329314.00142

Cube

Length = n
Surface area 39902552004117600
Volume 5.4234311704885E+23
Space diagonal 141248985.84435

Equilateral Triangle

Length = n
Perimeter 244650420
Area 2.8797186426163E+15
Altitude 70624492.922177

Triangular Pyramid

Length = n
Surface area 2.8797186426163E+15
Volume 6.3915749299181E+22
Height 38443104.667142