81898980 (number)

81898980 is an even 8-digits composite number following 81898979 and preceding 81898981. In scientific notation, it is written as 8.1898980 × 10^7. The sum of its digits is 51. It has a total of 5 prime factors and 24 positive divisors. There are 21738240 positive integers (up to 81898980) that are relatively prime to 81898980.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1898980 × 10^7
Engineering notation 8.1898980 × 10^6

Prime Factorization of 81898980

Prime Factorization 2 × 2 × 3 × 1115 × 6121

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40949490
Product of the distinct prime numbers

The prime factorization of 81898980 is 2 × 2 × 3 × 1115 × 6121. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 9, 68, 19, 123, 922, 403, 8329, 93258, 33647, 567925, 871467, 5785004, 8417212, 90517970, 77326595, 380561942, 616202229, 3032076193, 7821108627

Basic calculations (n = 81898980)

Multiplication

n×y
n×2 163797960
n×3 245696940
n×4 327595920
n×5 409494900

Division

n÷y
n÷2 40949490
n÷3 27299660
n÷3 20474745
n÷5 16379796

Exponentiation

ny
n2 6707442925040400
n3 5.4933273396903E+23
n4 4.4989790592675E+31
n5 3.6846179599536E+39

Nth Root

y√n
2√n 9049.8055227723
3√n 434.26966895524
4√n 95.130465797095
5√n 38.25213665243

Divisors of 81898980

1, 2, 3, 4, 6, 12, 1115, 2230, 3345, 4460, 6121, 6690, 12242, 13380, 18363, 24484, 36726, 73452, 6824915, 13649830, 20474745, 27299660, 40949490, 81898980

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 -81898979
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 81898980 can be divided by 24 positive divisors. The sum of these divisors (counting 81898980) is 1, the average is 0.041666666666667.

Base conversion 81898980

Base System Value
2 Binary 100111000011010110111100100
3 Ternary 12201002220021120
4 Quaternary 10320122313210
5 Quinary 131431231410
6 Senary 12043213540
8 Octal 470326744
10 Decimal 81898980
12 Duodecimal 235172b0
16 Hexadecimal 4e1ade4
20 Vigesimal 15bh790
36 Base36 1crdno

Cryptographic Hash Functions

md5 f8877fbd51d4296445e32a56f97e4a4f
sha1 8fee5a7ec208e19f0e360c42b818f3c6df30e1bf
sha256 7aa842978279665d02e5ddbe1c5a431ac471e2dfe08a283fd622e5abe4527eb7
sha512 3f0b688cdb684ac2948147a667d7f99277e6bede552934643fe59c055d330502ec3eeb628093a1800d3e14c9340d0df2430e31797c3254c2f6d71226d46bd8d1
ripemd-160 97ea4268e78be225b1d29da4f818a390aa781e4f

81898980 as geometric shapes

Circle

Radius = n
Diameter 163797960
Circumference 514586467.80899
Area 2.107205341768E+16

Sphere

Radius = n
Volume 2.301039575218E+24
Surface area 8.4288213670719E+16
Circumference 514586467.80899

Square

Length = n
Perimeter 327595920
Area 6707442925040400
Diagonal 115822648.26052

Cube

Length = n
Surface area 40244657550242400
Volume 5.4933273396903E+23
Space diagonal 141853194.44807

Equilateral Triangle

Length = n
Perimeter 245696940
Area 2.9044079837596E+15
Altitude 70926597.224034

Triangular Pyramid

Length = n
Surface area 2.9044079837596E+15
Volume 6.4739483552874E+22
Height 38607549.420174