81749106 (number)

81749106 is an even 8-digits composite number following 81749105 and preceding 81749107. In scientific notation, it is written as 8.1749106 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 26615736 positive integers (up to 81749106) that are relatively prime to 81749106.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred forty-nine thousand one hundred six

Notation

Scientific notation 8.1749106 × 10^7
Engineering notation 8.1749106 × 10^6

Prime Factorization of 81749106

Prime Factorization 2 × 9 × 43 × 105619

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81749106
Product of the distinct prime numbers

The prime factorization of 81749106 is 2 × 9 × 43 × 105619. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 6, 22, 68, 363, 848, 6739, 2025, 19277, 3478, 31576, 711207, 128932, 7020641, 62330990, 98092129, 154447163, 207138636, 5377034903, 3710480839

Basic calculations (n = 81749106)

Multiplication

n×y
n×2 163498212
n×3 245247318
n×4 326996424
n×5 408745530

Division

n÷y
n÷2 40874553
n÷3 27249702
n÷3 20437276.5
n÷5 16349821.2

Exponentiation

ny
n2 6682916331799236
n3 5.4632243559739E+23
n4 4.4661370697829E+31
n5 3.6510271272821E+39

Nth Root

y√n
2√n 9041.5212215644
3√n 434.00460470668
4√n 95.086914039548
5√n 38.238126216971

Divisors of 81749106

1, 2, 9, 18, 43, 86, 387, 774, 105619, 211238, 950571, 1901142, 4541617, 9083234, 40874553, 81749106

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 -81749105
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 81749106 can be divided by 16 positive divisors. The sum of these divisors (counting 81749106) is 1, the average is 0.0625.

Base conversion 81749106

Base System Value
2 Binary 100110111110110010001110010
3 Ternary 12200211021200200
4 Quaternary 10313312101302
5 Quinary 131411432411
6 Senary 12040100030
8 Octal 467662162
10 Decimal 81749106
12 Duodecimal 23464616
16 Hexadecimal 4df6472
20 Vigesimal 15aicf6
36 Base36 1co60i

Cryptographic Hash Functions

md5 659ba7ffdab2eed1650f0860f98f081b
sha1 7937c9b5028d4ea154f0bf8c7a0b13e93bcdf491
sha256 329e40ac9cc3f9ee88e752cae9453b9b743d824a847e8359bb3fa0b21c2cd509
sha512 c839260c5da50d57b466ac33b331d64fdde0e083e2aded4408e139cd5536f128f4b9d938d1816ef90af4716868c499435f285efcaf41316f769cea1afdcca294
ripemd-160 9123d6f700c4899e5c4da6d05b7523ae7dea4420

81749106 as geometric shapes

Circle

Radius = n
Diameter 163498212
Circumference 513644781.69427
Area 2.0995000852536E+16

Sphere

Radius = n
Volume 2.2884300668854E+24
Surface area 8.3980003410143E+16
Circumference 513644781.69427

Square

Length = n
Perimeter 326996424
Area 6682916331799236
Diagonal 115610694.41708

Cube

Length = n
Surface area 40097497990795416
Volume 5.4632243559739E+23
Space diagonal 141593605.06533

Equilateral Triangle

Length = n
Perimeter 245247318
Area 2.893787657352E+15
Altitude 70796802.532667

Triangular Pyramid

Length = n
Surface area 2.893787657352E+15
Volume 6.4384716487544E+22
Height 38536898.139025