81609983 (number)

81609983 is an odd 8-digits composite number following 81609982 and preceding 81609984. In scientific notation, it is written as 8.1609983 × 10^7. The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors. There are 63348480 positive integers (up to 81609983) that are relatively prime to 81609983.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred nine thousand nine hundred eighty-three

Notation

Scientific notation 8.1609983 × 10^7
Engineering notation 8.1609983 × 10^6

Prime Factorization of 81609983

Prime Factorization 7 × 13 × 53 × 16921

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81609983
Product of the distinct prime numbers

The prime factorization of 81609983 is 7 × 13 × 53 × 16921. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 7, 43, 71, 471, 524, 4121, 4745, 86455, 26284, 198090, 870087, 326971, 758116, 45334948, 6539421, 940408737, 892695406, 6130154554, 7691027331

Basic calculations (n = 81609983)

Multiplication

n×y
n×2 163219966
n×3 244829949
n×4 326439932
n×5 408049915

Division

n÷y
n÷2 40804991.5
n÷3 27203327.666667
n÷3 20402495.75
n÷5 16321996.6

Exponentiation

ny
n2 6660189325260289
n3 5.4353793761127E+23
n4 4.4358121848311E+31
n5 3.6200655699526E+39

Nth Root

y√n
2√n 9033.8243839473
3√n 433.75826436872
4√n 95.046432778654
5√n 38.225102397741

Divisors of 81609983

1, 7, 13, 53, 91, 371, 689, 4823, 16921, 118447, 219973, 896813, 1539811, 6277691, 11658569, 81609983

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 -81609982
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 81609983 can be divided by 16 positive divisors. The sum of these divisors (counting 81609983) is 1, the average is 0.0625.

Base conversion 81609983

Base System Value
2 Binary 100110111010100010011111111
3 Ternary 12200120012211222
4 Quaternary 10313110103333
5 Quinary 131343004413
6 Senary 12033103555
8 Octal 467242377
10 Decimal 81609983
12 Duodecimal 233b7bbb
16 Hexadecimal 4dd44ff
20 Vigesimal 15a14j3
36 Base36 1cl6nz

Cryptographic Hash Functions

md5 aa27eb919fed432573fdabc0e0c5aec3
sha1 acce71777f70c8d7f602443710e38e96948f9136
sha256 296f904bcd3683a036f1c003d88b813454000b3cbe5fb961d20eabd86873cc92
sha512 89fd6b966a0bd4eadeac1e84d14e9fef4df751dc4f472f80d2764e419907452ffff99657afbe3b76ef4ccdbfe7f6514088e259f95d85a1e5c33e3510028f91ed
ripemd-160 d37b55000df59280fe11b9e285c5f691ac0fb463

81609983 as geometric shapes

Circle

Radius = n
Diameter 163219966
Circumference 512770646.10478
Area 2.0923601855755E+16

Sphere

Radius = n
Volume 2.2767663889959E+24
Surface area 8.369440742302E+16
Circumference 512770646.10478

Square

Length = n
Perimeter 326439932
Area 6660189325260289
Diagonal 115413944.78364

Cube

Length = n
Surface area 39961135951561734
Volume 5.4353793761127E+23
Space diagonal 141352636.96083

Equilateral Triangle

Length = n
Perimeter 244829949
Area 2.8839465748447E+15
Altitude 70676318.480416

Triangular Pyramid

Length = n
Surface area 2.8839465748447E+15
Volume 6.4056560252847E+22
Height 38471314.927879