81388963 (number)

81388963 is an odd 8-digits composite number following 81388962 and preceding 81388964. In scientific notation, it is written as 8.1388963 × 10^7. The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors. There are 81278680 positive integers (up to 81388963) that are relatively prime to 81388963.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred eighty-eight thousand nine hundred sixty-three

Notation

Scientific notation 8.1388963 × 10^7
Engineering notation 8.1388963 × 10^6

Prime Factorization of 81388963

Prime Factorization 743 × 109541

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81388963
Product of the distinct prime numbers

The prime factorization of 81388963 is 743 × 109541. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 1, 54, 90, 649, 837, 6253, 6516, 34348, 98596, 426066, 726959, 3350083, 8242076, 80121898, 44670148, 153225387, 387110682, 2382924782, 5701074998

Basic calculations (n = 81388963)

Multiplication

n×y
n×2 162777926
n×3 244166889
n×4 325555852
n×5 406944815

Division

n÷y
n÷2 40694481.5
n÷3 27129654.333333
n÷3 20347240.75
n÷5 16277792.6

Exponentiation

ny
n2 6624163298215369
n3 5.3913378158441E+23
n4 4.3879539401424E+31
n5 3.5713102087995E+39

Nth Root

y√n
2√n 9021.5831759176
3√n 433.36633548785
4√n 94.982015012936
5√n 38.204375327388

Divisors of 81388963

1, 743, 109541, 81388963

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81388962
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81388963 can be divided by 4 positive divisors. The sum of these divisors (counting 81388963) is 1, the average is 0.25.

Base conversion 81388963

Base System Value
2 Binary 100110110011110010110100011
3 Ternary 12200010222200001
4 Quaternary 10312132112203
5 Quinary 131313421323
6 Senary 12024240431
8 Octal 466362643
10 Decimal 81388963
12 Duodecimal 23310117
16 Hexadecimal 4d9e5a3
20 Vigesimal 158dc83
36 Base36 1cgg4j

Cryptographic Hash Functions

md5 c81c540a91603b3e11f3fcdbb38385e3
sha1 0ed6d884da0c1f9115a5651ae7de90534e2427a0
sha256 b50cb8eefe6e6aaf245bd859daf8219064483845fdc80225b2c4e32ef602a886
sha512 2e1bcc6bc4531ac66f5b291d8da81ebdaf6c14b51b77468dfc0fb5f2d6f4dcafa1d355552439f62e15b75bd8913b6eb067fb801ca88b1519c09d91dffba22dd6
ripemd-160 95c61ebeba5c8244b03afc7cb8b04132c8b42a2d

81388963 as geometric shapes

Circle

Radius = n
Diameter 162777926
Circumference 511381936.48818
Area 2.0810422753853E+16

Sphere

Radius = n
Volume 2.2583183033702E+24
Surface area 8.324169101541E+16
Circumference 511381936.48818

Square

Length = n
Perimeter 325555852
Area 6624163298215369
Diagonal 115101375.30208

Cube

Length = n
Surface area 39744979789292214
Volume 5.3913378158441E+23
Space diagonal 140969819.09134

Equilateral Triangle

Length = n
Perimeter 244166889
Area 2.8683468475355E+15
Altitude 70484909.545672

Triangular Pyramid

Length = n
Surface area 2.8683468475355E+15
Volume 6.3537525487514E+22
Height 38367125.100694