81298984 (number)

81298984 is an even 8-digits composite number following 81298983 and preceding 81298985. In scientific notation, it is written as 8.1298984 × 10^7. The sum of its digits is 49. It has a total of 5 prime factors and 16 positive divisors. There are 37522560 positive integers (up to 81298984) that are relatively prime to 81298984.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred ninety-eight thousand nine hundred eighty-four

Notation

Scientific notation 8.1298984 × 10^7
Engineering notation 8.1298984 × 10^6

Prime Factorization of 81298984

Prime Factorization 2 × 2 × 2 × 13 × 781721

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20324746
Product of the distinct prime numbers

The prime factorization of 81298984 is 2 × 2 × 2 × 13 × 781721. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 10, 19, 22, 884, 59, 9252, 3245, 13707, 66369, 469122, 702096, 8488364, 9397568, 92055859, 70303431, 611626975, 84794323, 7391343614, 1456306708

Basic calculations (n = 81298984)

Multiplication

n×y
n×2 162597968
n×3 243896952
n×4 325195936
n×5 406494920

Division

n÷y
n÷2 40649492
n÷3 27099661.333333
n÷3 20324746
n÷5 16259796.8

Exponentiation

ny
n2 6609524799432256
n3 5.3734765091665E+23
n4 4.368581807431E+31
n5 3.5516126246502E+39

Nth Root

y√n
2√n 9016.5949226967
3√n 433.20657489011
4√n 94.955752446583
5√n 38.19592427326

Divisors of 81298984

1, 2, 4, 8, 13, 26, 52, 104, 781721, 1563442, 3126884, 6253768, 10162373, 20324746, 40649492, 81298984

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 -81298983
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 81298984 can be divided by 16 positive divisors. The sum of these divisors (counting 81298984) is 1, the average is 0.0625.

Base conversion 81298984

Base System Value
2 Binary 100110110001000011000101000
3 Ternary 12122222102020111
4 Quaternary 10312020120220
5 Quinary 131303031414
6 Senary 12022304104
8 Octal 466103050
10 Decimal 81298984
12 Duodecimal 23288034
16 Hexadecimal 4d88628
20 Vigesimal 1582794
36 Base36 1ceip4

Cryptographic Hash Functions

md5 41860f704877b7d8e427ac41d95565a3
sha1 61119b0f0199280ec39ab4b76657a8d5f92f732c
sha256 e8a9f2c6a347410f0c46a5b0993b390ab527069a83c24947e5642912e22c9702
sha512 11cc735fa3ea24640f99cc99cc57d21eb79e7033681ac05aee1d6df623e283afe6df149eb16de7391fcae527c6137712e38382585cf6514b6969c3aa7e121157
ripemd-160 a8822650c10c027fac85e9f895b3dbadb40d2d64

81298984 as geometric shapes

Circle

Radius = n
Diameter 162597968
Circumference 510816581.75743
Area 2.0764434553616E+16

Sphere

Radius = n
Volume 2.2508365767246E+24
Surface area 8.3057738214464E+16
Circumference 510816581.75743

Square

Length = n
Perimeter 325195936
Area 6609524799432256
Diagonal 114974125.77995

Cube

Length = n
Surface area 39657148796593536
Volume 5.3734765091665E+23
Space diagonal 140813970.89173

Equilateral Triangle

Length = n
Perimeter 243896952
Area 2.8620081916258E+15
Altitude 70406985.445865

Triangular Pyramid

Length = n
Surface area 2.8620081916258E+15
Volume 6.3327027969637E+22
Height 38324708.593318