81361284 (number)

81361284 is an even 8-digits composite number following 81361283 and preceding 81361285. In scientific notation, it is written as 8.1361284 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 24 positive divisors. There are 27097920 positive integers (up to 81361284) that are relatively prime to 81361284.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred sixty-one thousand two hundred eighty-four

Notation

Scientific notation 8.1361284 × 10^7
Engineering notation 8.1361284 × 10^6

Prime Factorization of 81361284

Prime Factorization 2 × 2 × 3 × 1747 × 3881

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40680642
Product of the distinct prime numbers

The prime factorization of 81361284 is 2 × 2 × 3 × 1747 × 3881. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 1, 73, 15, 378, 20, 5411, 2498, 76256, 28174, 376970, 406790, 6836691, 3416909, 83339871, 43724417, 9517411, 956056841, 5247103016, 635164138

Basic calculations (n = 81361284)

Multiplication

n×y
n×2 162722568
n×3 244083852
n×4 325445136
n×5 406806420

Division

n÷y
n÷2 40680642
n÷3 27120428
n÷3 20340321
n÷5 16272256.8

Exponentiation

ny
n2 6619658534128656
n3 5.3858391797827E+23
n4 4.3819879108462E+31
n5 3.5652416289893E+39

Nth Root

y√n
2√n 9020.0490020842
3√n 433.31720308137
4√n 94.973938541498
5√n 38.201776442369

Divisors of 81361284

1, 2, 3, 4, 6, 12, 1747, 3494, 3881, 5241, 6988, 7762, 10482, 11643, 15524, 20964, 23286, 46572, 6780107, 13560214, 20340321, 27120428, 40680642, 81361284

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 -81361283
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 81361284 can be divided by 24 positive divisors. The sum of these divisors (counting 81361284) is 1, the average is 0.041666666666667.

Base conversion 81361284

Base System Value
2 Binary 100110110010111100110000100
3 Ternary 12200002120200220
4 Quaternary 10312113212010
5 Quinary 131312030114
6 Senary 12023504340
8 Octal 466274604
10 Decimal 81361284
12 Duodecimal 232b80b0
16 Hexadecimal 4d97984
20 Vigesimal 158a344
36 Base36 1cfuro

Cryptographic Hash Functions

md5 aad6e3c12bb068abf556a14403757632
sha1 d1a8cb0e0faf9944870e21df908352be578166fb
sha256 aa17358be40802825d9b89b04eea1ef37afe9e5b91b093e4e59ba573e223b02f
sha512 1b43c4ebfd2981eb9655f5b2db1a1881d283a81d907f7733383e983e5e217340a0d8d170d569c6766f0e9196289f6182f54342e8d5bd66e2038f67be2df5fcc6
ripemd-160 e29f3b305d89647eafecfcb467f6e2947e203f57

81361284 as geometric shapes

Circle

Radius = n
Diameter 162722568
Circumference 511208024.20207
Area 2.0796270620092E+16

Sphere

Radius = n
Volume 2.2560150400828E+24
Surface area 8.3185082480366E+16
Circumference 511208024.20207

Square

Length = n
Perimeter 325445136
Area 6619658534128656
Diagonal 115062231.28489

Cube

Length = n
Surface area 39717951204771936
Volume 5.3858391797827E+23
Space diagonal 140921877.65704

Equilateral Triangle

Length = n
Perimeter 244083852
Area 2.8663962274669E+15
Altitude 70460938.82852

Triangular Pyramid

Length = n
Surface area 2.8663962274669E+15
Volume 6.3472723440075E+22
Height 38354077.094963