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

81749089 (number)

81749089 is an odd 8-digits composite number following 81749088 and preceding 81749090. In scientific notation, it is written as 8.1749089 × 10^7. The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors. There are 80408880 positive integers (up to 81749089) that are relatively prime to 81749089.

Interesting facts

81749089 has 4 divisors, whose sum is 83089300
The reverse of 81749089 is 98094718
Previous prime number is 61

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1

Name

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

Notation

Scientific notation	8.1749089 × 10^7
Engineering notation	8.1749089 × 10^6

Prime Factorization of 81749089

Prime Factorization 61 × 1340149

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81749089	Product of the distinct prime numbers

The prime factorization of 81749089 is 61 × 1340149. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 2, 75, 63, 990, 20, 8647, 2793, 10389, 68040, 810601, 927668, 953073, 4575909, 68984809, 66131326, 88861241, 747980239, 3516194467, 1846125913

Basic calculations (n = 81749089)

Multiplication

n×y

n×2	163498178
n×3	245247267
n×4	326996356
n×5	408745445

Division

n÷y

n÷2	40874544.5
n÷3	27249696.333333
n÷3	20437272.25
n÷5	16349817.8

Exponentiation

n^y

n²	6682913552329921
n³	5.4632209476872E+23
n⁴	4.4661333547915E+31
n⁵	3.6510233310672E+39

Nth Root

^y√n

²√n	9041.5202814571
³√n	434.00457462244
⁴√n	95.086909096137
⁵√n	38.238124626621

Divisors of 81749089

1, 61, 1340149, 81749089

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81749088	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81749089 can be divided by 4 positive divisors. The sum of these divisors (counting 81749089) is 1, the average is 0.25.

Base conversion 81749089

Base	System	Value
2	Binary	100110111110110010001100001
3	Ternary	12200211021200001
4	Quaternary	10313312101201
5	Quinary	131411432324
6	Senary	12040100001
8	Octal	467662141
10	Decimal	81749089
12	Duodecimal	23464601
16	Hexadecimal	4df6461
20	Vigesimal	15aice9
36	Base36	1co601

Cryptographic Hash Functions

md5	8c4bea77fd03d4e3e4d4df288551e0cb
sha1	bd738e4ea0c936bdf88ad3fc1d55a656351fafa6
sha256	d83ff9b34af9b7204da233950c9da19b9d1e384ccd7368664d49c9c5d02c6727
sha512	b4b95abbb822258e1fa084ae2a44b482a2e7a5b1bc2ec24eb3e96a958f452a015d0bb41348293737fffd734774934476658efb8e570e0b06b2f131e92028c6cf
ripemd-160	c67cc60597344e889368733cd39dd4cc081db6f5

81749089 as geometric shapes

Circle

Radius = n

Diameter	163498178
Circumference	513644674.88012
Area	2.0994992120575E+16

Sphere

Radius = n

Volume	2.2884286392256E+24
Surface area	8.3979968482301E+16
Circumference	513644674.88012

Square

Length = n

Perimeter	326996356
Area	6682913552329921
Diagonal	115610670.37545

Cube

Length = n

Surface area	40097481313979526
Volume	5.4632209476872E+23
Space diagonal	141593575.62047

Equilateral Triangle

Length = n

Perimeter	245247267
Area	2.8937864538065E+15
Altitude	70796787.810235

Triangular Pyramid

Length = n

Surface area	2.8937864538065E+15
Volume	6.4384676320501E+22
Height	38536890.125148