Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

81749105 (number)

81749105 is an odd 8-digits composite number following 81749104 and preceding 81749106. In scientific notation, it is written as 8.1749105 × 10^7. The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors. There are 65358576 positive integers (up to 81749105) that are relatively prime to 81749105.

Interesting facts

81749105 has 8 divisors, whose sum is 98160000
The reverse of 81749105 is 50194718
Previous prime number is 1999

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8

Name

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

Notation

Scientific notation	8.1749105 × 10^7
Engineering notation	8.1749105 × 10^6

Prime Factorization of 81749105

Prime Factorization 5 × 1999 × 8179

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81749105	Product of the distinct prime numbers

The prime factorization of 81749105 is 5 × 1999 × 8179. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 3, 80, 64, 686, 424, 7680, 9212, 9717, 17350, 207120, 99603, 3587958, 6811875, 18145115, 25324062, 280967563, 369129798, 8234583699, 7537115774

Basic calculations (n = 81749105)

Multiplication

n×y

n×2	163498210
n×3	245247315
n×4	326996420
n×5	408745525

Division

n÷y

n÷2	40874552.5
n÷3	27249701.666667
n÷3	20437276.25
n÷5	16349821

Exponentiation

n^y

n²	6682916168301025
n³	5.4632241554864E+23
n⁴	4.4661368512539E+31
n⁵	3.6510269039753E+39

Nth Root

^y√n

²√n	9041.521166264
³√n	434.00460293702
⁴√n	95.086913748759
⁵√n	38.238126123421

Divisors of 81749105

1, 5, 1999, 8179, 9995, 40895, 16349821, 81749105

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81749104	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81749105 can be divided by 8 positive divisors. The sum of these divisors (counting 81749105) is 1, the average is 0.125.

Base conversion 81749105

Base	System	Value
2	Binary	100110111110110010001110001
3	Ternary	12200211021200122
4	Quaternary	10313312101301
5	Quinary	131411432410
6	Senary	12040100025
8	Octal	467662161
10	Decimal	81749105
12	Duodecimal	23464615
16	Hexadecimal	4df6471
20	Vigesimal	15aicf5
36	Base36	1co60h

Cryptographic Hash Functions

md5	cecac915decbe7e89987b836a6d3dca0
sha1	807152637bc4588a7e36b66b792c91044203aa67
sha256	b620bf46ecb389e72819818e03ff222bab24dd4276388c9439a0901aaae79e4f
sha512	102841df604fc395e427c5d7edb4a92a89e00283294cf6aaf9b0465717ad8757d19c59e07e1c2131163484d8b58a6d63bb335e8fe5494bebd3c53447b5515917
ripemd-160	6643b93191be6646c790161d3663fa2322dd6963

81749105 as geometric shapes

Circle

Radius = n

Diameter	163498210
Circumference	513644775.41108
Area	2.0995000338891E+16

Sphere

Radius = n

Volume	2.2884299829054E+24
Surface area	8.3980001355564E+16
Circumference	513644775.41108

Square

Length = n

Perimeter	326996420
Area	6682916168301025
Diagonal	115610693.00286

Cube

Length = n

Surface area	40097497009806150
Volume	5.4632241554864E+23
Space diagonal	141593603.33328

Equilateral Triangle

Length = n

Perimeter	245247315
Area	2.8937875865552E+15
Altitude	70796801.666641

Triangular Pyramid

Length = n

Surface area	2.8937875865552E+15
Volume	6.4384714124776E+22
Height	38536897.667621