81438510 (number)

81438510 is an even 8-digits composite number following 81438509 and preceding 81438511. In scientific notation, it is written as 8.1438510 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 21716928 positive integers (up to 81438510) that are relatively prime to 81438510.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred thirty-eight thousand five hundred ten

Notation

Scientific notation 8.1438510 × 10^7
Engineering notation 8.1438510 × 10^6

Prime Factorization of 81438510

Prime Factorization 2 × 3 × 5 × 2714617

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81438510
Product of the distinct prime numbers

The prime factorization of 81438510 is 2 × 3 × 5 × 2714617. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 3, 88, 25, 433, 281, 4589, 2195, 31931, 63918, 499570, 750106, 1209860, 4568332, 30054672, 68068604, 128053027, 405789191, 4028224260, 3588120440

Basic calculations (n = 81438510)

Multiplication

n×y
n×2 162877020
n×3 244315530
n×4 325754040
n×5 407192550

Division

n÷y
n÷2 40719255
n÷3 27146170
n÷3 20359627.5
n÷5 16287702

Exponentiation

ny
n2 6632230911020100
n3 5.4011900336942E+23
n4 4.3986486857091E+31
n5 3.582193949776E+39

Nth Root

y√n
2√n 9024.3287839041
3√n 433.45425750802
4√n 94.996467218019
5√n 38.209025715709

Divisors of 81438510

1, 2, 3, 5, 6, 10, 15, 30, 2714617, 5429234, 8143851, 13573085, 16287702, 27146170, 40719255, 81438510

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 -81438509
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 81438510 can be divided by 16 positive divisors. The sum of these divisors (counting 81438510) is 1, the average is 0.0625.

Base conversion 81438510

Base System Value
2 Binary 100110110101010011100101110
3 Ternary 12200020111122010
4 Quaternary 10312222130232
5 Quinary 131322013020
6 Senary 12025302050
8 Octal 466523456
10 Decimal 81438510
12 Duodecimal 23334926
16 Hexadecimal 4daa72e
20 Vigesimal 158jg5a
36 Base36 1chicu

Cryptographic Hash Functions

md5 bc04dc3280b2c5f2de1c669af1b4367e
sha1 f63f5be75dd6f556457d8100e6f68e45cded68b8
sha256 5833dd9a6fd80e7644749c7f36bfa59226260e55e0a4bb5a334a56e939a95a10
sha512 4c86b324c96f38e57cb1650f227136e6f3814363e5484c55dbadd55307943d8437d211416ca28f5b7ebd32d1846b98225b729311f1ddeacc58c06af54e4f1b70
ripemd-160 c9d1cfe216d8c521e9163e92686c8cda9c08d864

81438510 as geometric shapes

Circle

Radius = n
Diameter 162877020
Circumference 511693249.4706
Area 2.0835767906972E+16

Sphere

Radius = n
Volume 2.2624451907328E+24
Surface area 8.3343071627888E+16
Circumference 511693249.4706

Square

Length = n
Perimeter 325754040
Area 6632230911020100
Diagonal 115171445.34146

Cube

Length = n
Surface area 39793385466120600
Volume 5.4011900336942E+23
Space diagonal 141055637.01271

Equilateral Triangle

Length = n
Perimeter 244315530
Area 2.8718402263539E+15
Altitude 70527818.506353

Triangular Pyramid

Length = n
Surface area 2.8718402263539E+15
Volume 6.3653634988373E+22
Height 38390481.780486