81103638 (number)

81103638 is an even 8-digits composite number following 81103637 and preceding 81103639. In scientific notation, it is written as 8.1103638 × 10^7. The sum of its digits is 30. It has a total of 5 prime factors and 24 positive divisors. There are 21064560 positive integers (up to 81103638) that are relatively prime to 81103638.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred three thousand six hundred thirty-eight

Notation

Scientific notation 8.1103638 × 10^7
Engineering notation 8.1103638 × 10^6

Prime Factorization of 81103638

Prime Factorization 2 × 21 × 11 × 11 × 15959

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 7373058
Product of the distinct prime numbers

The prime factorization of 81103638 is 2 × 21 × 11 × 11 × 15959. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 8, 14, 26, 295, 373, 8035, 4624, 38186, 79358, 649494, 714151, 2659393, 211955, 36698288, 12877547, 370990010, 676311112, 7295028285, 1213478276

Basic calculations (n = 81103638)

Multiplication

n×y
n×2 162207276
n×3 243310914
n×4 324414552
n×5 405518190

Division

n÷y
n÷2 40551819
n÷3 27034546
n÷3 20275909.5
n÷5 16220727.6

Exponentiation

ny
n2 6577800096835044
n3 5.3348351789007E+23
n4 4.3267454113923E+31
n5 3.5091479356372E+39

Nth Root

y√n
2√n 9005.755826137
3√n 432.85932560755
4√n 94.898660823728
5√n 38.177551097207

Divisors of 81103638

1, 2, 11, 21, 22, 42, 121, 231, 242, 462, 2541, 5082, 15959, 31918, 175549, 335139, 351098, 670278, 1931039, 3686529, 3862078, 7373058, 40551819, 81103638

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 -81103637
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 81103638 can be divided by 24 positive divisors. The sum of these divisors (counting 81103638) is 1, the average is 0.041666666666667.

Base conversion 81103638

Base System Value
2 Binary 100110101011000101100010110
3 Ternary 12122121111021110
4 Quaternary 10311120230112
5 Quinary 131230304023
6 Senary 12014155450
8 Octal 465305426
10 Decimal 81103638
12 Duodecimal 231b2b86
16 Hexadecimal 4d58b16
20 Vigesimal 156hj1i
36 Base36 1cabyu

Cryptographic Hash Functions

md5 87f2941f6061a2c66f2f2be08618791d
sha1 762ce50de96fc3bd45c1191473037b3c0f7be316
sha256 c22e3d6c4313879fb65a89216e1448dab543fd7c213c426caf98b19e428f8a61
sha512 a009fefddfc3f41573530a156b1bb3bf4eb122d395eea3b0f893bbb2bc792102184ba8ed02ec0521d43cc5e16620b44e5805f7724e3a7f32254e0ee8bd9e0016
ripemd-160 a843ea44073d91a6a7e429b0a13f47299f54b038

81103638 as geometric shapes

Circle

Radius = n
Diameter 162207276
Circumference 509589186.64041
Area 2.0664768460999E+16

Sphere

Radius = n
Volume 2.2346505341529E+24
Surface area 8.2659073843997E+16
Circumference 509589186.64041

Square

Length = n
Perimeter 324414552
Area 6577800096835044
Diagonal 114697864.8174

Cube

Length = n
Surface area 39466800581010264
Volume 5.3348351789007E+23
Space diagonal 140475621.69467

Equilateral Triangle

Length = n
Perimeter 243310914
Area 2.8482709924374E+15
Altitude 70237810.847337

Triangular Pyramid

Length = n
Surface area 2.8482709924374E+15
Volume 6.2871635525221E+22
Height 38232621.605799