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

81749907 (number)

81749907 is an odd 8-digits composite number following 81749906 and preceding 81749908. In scientific notation, it is written as 8.1749907 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 54295728 positive integers (up to 81749907) that are relatively prime to 81749907.

Interesting facts

81749907 has 8 divisors, whose sum is 91173600
The reverse of 81749907 is 70994718
Previous prime number is 269

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9

Name

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

Notation

Scientific notation	8.1749907 × 10^7
Engineering notation	8.1749907 × 10^6

Prime Factorization of 81749907

Prime Factorization 9 × 269 × 33767

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81749907	Product of the distinct prime numbers

The prime factorization of 81749907 is 9 × 269 × 33767. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 4, 62, 51, 803, 258, 9233, 3397, 2475, 9089, 184871, 187798, 8401845, 4074523, 16296666, 42872451, 338730262, 257982773, 9867740536, 6986955939

Basic calculations (n = 81749907)

Multiplication

n×y

n×2	163499814
n×3	245249721
n×4	326999628
n×5	408749535

Division

n÷y

n÷2	40874953.5
n÷3	27249969
n÷3	20437476.75
n÷5	16349981.4

Exponentiation

n^y

n²	6683047294508649
n³	5.4633849480268E+23
n⁴	4.4663121140639E+31
n⁵	3.651205999577E+39

Nth Root

^y√n

²√n	9041.5655170993
³√n	434.00602220048
⁴√n	95.087146960561
⁵√n	38.238201150192

Divisors of 81749907

1, 9, 269, 2421, 33767, 303903, 9083323, 81749907

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	-81749906	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 81749907 can be divided by 8 positive divisors. The sum of these divisors (counting 81749907) is 1, the average is 0.125.

Base conversion 81749907

Base	System	Value
2	Binary	100110111110110011110010011
3	Ternary	12200211022210100
4	Quaternary	10313312132103
5	Quinary	131411444112
6	Senary	12040103443
8	Octal	467663623
10	Decimal	81749907
12	Duodecimal	23464b83
16	Hexadecimal	4df6793
20	Vigesimal	15aief7
36	Base36	1co6mr

Cryptographic Hash Functions

md5	2b5691d51639e849fac958c53f26861f
sha1	0722b9e6a612d2409b47e03ae8c70002d2113eed
sha256	72d1652e2f58cdd7ac517dd087af41870377ece5f12fa3b45778941979249209
sha512	6915a2e9edc31cb9748c99d1577686926b3b5e9ab1c75cc87211f1b2aec33549a512413a863002748dccd65c6d4acf74dcffbf30c4e7ab4000750e2a5cc33014
ripemd-160	e2f8a5110abb524b595b64f65eef641287204c3f

81749907 as geometric shapes

Circle

Radius = n

Diameter	163499814
Circumference	513649814.5257
Area	2.0995412284022E+16

Sphere

Radius = n

Volume	2.2884973355272E+24
Surface area	8.3981649136086E+16
Circumference	513649814.5257

Square

Length = n

Perimeter	326999628
Area	6683047294508649
Diagonal	115611827.20214

Cube

Length = n

Surface area	40098283767051894
Volume	5.4633849480268E+23
Space diagonal	141594992.43803

Equilateral Triangle

Length = n

Perimeter	245249721
Area	2.8938443658687E+15
Altitude	70797496.219015

Triangular Pyramid

Length = n

Surface area	2.8938443658687E+15
Volume	6.4386609083038E+22
Height	38537275.734046