81954 (number)

81954 is an even 5-digits composite number following 81953 and preceding 81955. In scientific notation, it is written as 8.1954 × 10^4. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 26208 positive integers (up to 81954) that are relatively prime to 81954.

Interesting facts

Basic properties

Name

Name eighty-one thousand nine hundred fifty-four

Notation

Scientific notation 8.1954 × 10^4
Engineering notation 8.1954 × 10^3

Prime Factorization of 81954

Prime Factorization 2 × 9 × 29 × 157

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81954
Product of the distinct prime numbers

The prime factorization of 81954 is 2 × 9 × 29 × 157. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 3, 77, 37, 218, 604, 2363, 5010, 95812, 74820, 840622, 569428, 7747076, 8585255, 95834767, 79259023, 783598383, 456314668, 4778658977, 6026027457

Basic calculations (n = 81954)

Multiplication

n×y
n×2 163908
n×3 245862
n×4 327816
n×5 409770

Division

n÷y
n÷2 40977
n÷3 27318
n÷3 20488.5
n÷5 16390.8

Exponentiation

ny
n2 6716458116
n3 550440608438664
n4 4.5110809623982E+19
n5 3.6970112919238E+24

Nth Root

y√n
2√n 286.27609051404
3√n 43.436689510954
4√n 16.919695343417
5√n 9.6097929611612

Divisors of 81954

1, 2, 9, 18, 29, 58, 157, 261, 314, 522, 1413, 2826, 4553, 9106, 40977, 81954

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 -81953
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 81954 can be divided by 16 positive divisors. The sum of these divisors (counting 81954) is 1, the average is 0.0625.

Base conversion 81954

Base System Value
2 Binary 10100000000100010
3 Ternary 11011102100
4 Quaternary 110000202
5 Quinary 10110304
6 Senary 1431230
8 Octal 240042
10 Decimal 81954
12 Duodecimal 3b516
16 Hexadecimal 14022
20 Vigesimal a4he
36 Base36 1r8i

Cryptographic Hash Functions

md5 1022c0ba6643184733e107f5b457d2ef
sha1 df192a7c3ce91cd9b963a58b7b63089b203dfde0
sha256 bbe42ffd6d695f533d94f60b622fc23c8e5280bc998f453376567b9ada374c5c
sha512 c7245fc4b07fb87a376e4585df46aefb505eb2c4dfc22405e40abd5d94da36505e7a3ea29a334193e41efad8783d55eb22c43af2a89deef83b13f755e948acb8
ripemd-160 deb72896dd7e4e818398174320837c08091332a5

81954 as geometric shapes

Circle

Radius = n
Diameter 163908
Circumference 514932.1686646
Area 21100375475.369

Sphere

Radius = n
Volume 2.3056802289445E+15
Surface area 84401501901.477
Circumference 514932.1686646

Square

Length = n
Perimeter 327816
Area 6716458116
Diagonal 115900.45829072

Cube

Length = n
Surface area 40298748696
Volume 550440608438664
Space diagonal 141948.4918835

Equilateral Triangle

Length = n
Perimeter 245862
Area 2908311675.9551
Altitude 70974.24594175

Triangular Pyramid

Length = n
Surface area 2908311675.9551
Volume 64870047811238
Height 38633.486096908