81491106 (number)

81491106 is an even 8-digits composite number following 81491105 and preceding 81491107. In scientific notation, it is written as 8.1491106 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 26531904 positive integers (up to 81491106) that are relatively prime to 81491106.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-one thousand one hundred six

Notation

Scientific notation 8.1491106 × 10^7
Engineering notation 8.1491106 × 10^6

Prime Factorization of 81491106

Prime Factorization 2 × 3 × 43 × 315857

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81491106
Product of the distinct prime numbers

The prime factorization of 81491106 is 2 × 3 × 43 × 315857. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 2, 50, 70, 945, 884, 7389, 2550, 62708, 99246, 50984, 201411, 9445712, 1931057, 48700052, 26585073, 826633053, 436312873, 9440741966, 9708786781

Basic calculations (n = 81491106)

Multiplication

n×y
n×2 162982212
n×3 244473318
n×4 325964424
n×5 407455530

Division

n÷y
n÷2 40745553
n÷3 27163702
n÷3 20372776.5
n÷5 16298221.2

Exponentiation

ny
n2 6640800357103236
n3 5.4116616582554E+23
n4 4.4100229382902E+31
n5 3.5937764672664E+39

Nth Root

y√n
2√n 9027.2424360931
3√n 433.54755102058
4√n 95.011801562191
5√n 38.213959801456

Divisors of 81491106

1, 2, 3, 6, 43, 86, 129, 258, 315857, 631714, 947571, 1895142, 13581851, 27163702, 40745553, 81491106

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 -81491105
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 81491106 can be divided by 16 positive divisors. The sum of these divisors (counting 81491106) is 1, the average is 0.0625.

Base conversion 81491106

Base System Value
2 Binary 100110110110111010010100010
3 Ternary 12200100011210010
4 Quaternary 10312313102202
5 Quinary 131330203411
6 Senary 12030345350
8 Octal 466672242
10 Decimal 81491106
12 Duodecimal 2335b256
16 Hexadecimal 4db74a2
20 Vigesimal 15967f6
36 Base36 1cimxu

Cryptographic Hash Functions

md5 b0b0223fd75126fb371f76bf1bef5ee3
sha1 5d90041d331bac0ec5e1bdca564dcfad56f87314
sha256 61b8cec22d8de06a28ca7991ae3a2fcb4bc1baf925848da606fcd57ac747cb47
sha512 2d4ed7229a1b44b4fb74938788aadd8dc847a742430eb66217ed700a5c625d0fe5a1a242d6727e94ac40eede0189ed3638dca9b14e8fc7a121fb9f19cd50a586
ripemd-160 dfb94c8c7f0687c4187885b54c102b7eed74241d

81491106 as geometric shapes

Circle

Radius = n
Diameter 162982212
Circumference 512023719.88501
Area 2.0862689615832E+16

Sphere

Radius = n
Volume 2.2668315345718E+24
Surface area 8.3450758463328E+16
Circumference 512023719.88501

Square

Length = n
Perimeter 325964424
Area 6640800357103236
Diagonal 115245827.31798

Cube

Length = n
Surface area 39844802142619416
Volume 5.4116616582554E+23
Space diagonal 141146735.95698

Equilateral Triangle

Length = n
Perimeter 244473318
Area 2.8755509053561E+15
Altitude 70573367.97849

Triangular Pyramid

Length = n
Surface area 2.8755509053561E+15
Volume 6.3777044267327E+22
Height 38415275.772661