81998943 (number)

81998943 is an odd 8-digits composite number following 81998942 and preceding 81998944. In scientific notation, it is written as 8.1998943 × 10^7. The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors. There are 50147424 positive integers (up to 81998943) that are relatively prime to 81998943.

Interesting facts

Basic properties

Name

Name eighty-one million nine hundred ninety-eight thousand nine hundred forty-three

Notation

Scientific notation 8.1998943 × 10^7
Engineering notation 8.1998943 × 10^6

Prime Factorization of 81998943

Prime Factorization 3 × 13 × 163 × 12899

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81998943
Product of the distinct prime numbers

The prime factorization of 81998943 is 3 × 13 × 163 × 12899. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 2, 58, 76, 583, 336, 647, 3679, 64591, 71401, 627795, 865664, 8574553, 7506649, 13973812, 15805508, 149697673, 483447136, 1451509528, 5816653475

Basic calculations (n = 81998943)

Multiplication

n×y
n×2 163997886
n×3 245996829
n×4 327995772
n×5 409994715

Division

n÷y
n÷2 40999471.5
n÷3 27332981
n÷3 20499735.75
n÷5 16399788.6

Exponentiation

ny
n2 6723826653117249
n3 5.5134667847084E+23
n4 4.520984486117E+31
n5 3.7071594918099E+39

Nth Root

y√n
2√n 9055.3267748878
3√n 434.44628185464
4√n 95.159480740953
5√n 38.26146993796

Divisors of 81998943

1, 3, 13, 39, 163, 489, 2119, 6357, 12899, 38697, 167687, 503061, 2102537, 6307611, 27332981, 81998943

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 -81998942
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 81998943 can be divided by 16 positive divisors. The sum of these divisors (counting 81998943) is 1, the average is 0.0625.

Base conversion 81998943

Base System Value
2 Binary 100111000110011010001011111
3 Ternary 12201021222101220
4 Quaternary 10320303101133
5 Quinary 131442431233
6 Senary 12045304423
8 Octal 470632137
10 Decimal 81998943
12 Duodecimal 23565113
16 Hexadecimal 4e3345f
20 Vigesimal 15c9h73
36 Base36 1ctisf

Cryptographic Hash Functions

md5 43a06c156a3f94acfc4537991d4906ea
sha1 0f2028e9a4499651c30476280b334d639ee64d34
sha256 0a58e7a7e38944e6277031f491b58c60b1d2e0058b4fb022a74528dbecaf2e44
sha512 67c7896f58d76d6cef0453222a742fd29e5186c25c714fc552fb54a658b6cc7bec85818ada85fc3d8bb6c71dca54f386e2399fb74840ff15127ab526cad79cd5
ripemd-160 50d8160dbe0d3c70b33c7b191bf797fdba27cfa4

81998943 as geometric shapes

Circle

Radius = n
Diameter 163997886
Circumference 515214553.86186
Area 2.1123524417444E+16

Sphere

Radius = n
Volume 2.3094755662202E+24
Surface area 8.4494097669778E+16
Circumference 515214553.86186

Square

Length = n
Perimeter 327995772
Area 6723826653117249
Diagonal 115964017.29086

Cube

Length = n
Surface area 40342959918703494
Volume 5.5134667847084E+23
Space diagonal 142026335.44294

Equilateral Triangle

Length = n
Perimeter 245996829
Area 2.9115023461212E+15
Altitude 71013167.721472

Triangular Pyramid

Length = n
Surface area 2.9115023461212E+15
Volume 6.4976829188569E+22
Height 38654672.430286