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

261388 (number)

261388 is an even 6-digits composite number following 261387 and preceding 261389. In scientific notation, it is written as 2.61388 × 10^5. The sum of its digits is 28. It has a total of 4 prime factors and 12 positive divisors. There are 129200 positive integers (up to 261388) that are relatively prime to 261388.

Interesting facts

261388 has 12 divisors, whose sum is 462672
The reverse of 261388 is 883162
Previous prime number is 101

Basic properties

Is Prime? no
Number parity even
Number length 6
Sum of Digits 28
Digital Root 1

Name

Name	two hundred sixty-one thousand three hundred eighty-eight

Notation

Scientific notation	2.61388 × 10^5
Engineering notation	2.61388 × 10^3

Prime Factorization of 261388

Prime Factorization 2 × 2 × 101 × 647

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	130694	Product of the distinct prime numbers

The prime factorization of 261388 is 2 × 2 × 101 × 647. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 2, 22, 67, 709, 936, 342, 4579, 30331, 35945, 759087, 358100, 2934437, 3547277, 61731571, 61792976, 637403774, 847688353, 8250500950, 4351592676

Basic calculations (n = 261388)

Multiplication

n×y

n×2	522776
n×3	784164
n×4	1045552
n×5	1306940

Division

n÷y

n÷2	130694
n÷3	87129.333333333
n÷3	65347
n÷5	52277.6

Exponentiation

n^y

n²	68323686544
n³	17858991778363072
n⁴	4.6681261429628E+21
n⁵	1.2201921562568E+27

Nth Root

^y√n

²√n	511.2611856967
³√n	63.938417324852
⁴√n	22.611085460382
⁵√n	12.118730543164

Divisors of 261388

1, 2, 4, 101, 202, 404, 647, 1294, 2588, 65347, 130694, 261388

12 divisors

τ	Total Divisors	12	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-261387	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.083333333333333	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	12	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 261388 can be divided by 12 positive divisors. The sum of these divisors (counting 261388) is 1, the average is 0.083333333333333.

Base conversion 261388

Base	System	Value
2	Binary	111111110100001100
3	Ternary	111021120001
4	Quaternary	333310030
5	Quinary	31331023
6	Senary	5334044
8	Octal	776414
10	Decimal	261388
12	Duodecimal	107324
16	Hexadecimal	3fd0c
20	Vigesimal	1cd98
36	Base36	5los

Cryptographic Hash Functions

md5	1ee99185ef999a13441714ca47bd135e
sha1	942e8d88de6858f47de9ee6d0591a6c417213d22
sha256	f2916871b64dee6305b0b8232869cc364fb816d09950e2856df8a7db57ffbd6d
sha512	c9b74c4b0c5764b6f45ad54bd5bb31604e9e5d9001521b8d14497606ad240c931c9dbd7e9297a6993655d3af9c6ee1486f461d9e0f030851a1b2c445ffaa8bf1
ripemd-160	cb7b8783c1cd0965b21c84dc0eda9ff090c44089

261388 as geometric shapes

Circle

Radius = n

Diameter	522776
Circumference	1642349.2410731
Area	214645191712.8

Sphere

Radius = n

Volume	7.4807569828568E+16
Surface area	858580766851.21
Circumference	1642349.2410731

Square

Length = n

Perimeter	1045552
Area	68323686544
Diagonal	369658.45464158

Cube

Length = n

Surface area	409942119264
Volume	17858991778363072
Space diagonal	452737.29648881

Equilateral Triangle

Length = n

Perimeter	784164
Area	29585024113.655
Altitude	226368.64824441

Triangular Pyramid

Length = n

Surface area	29585024113.655
Volume	2.1047023652726E+15
Height	123219.48488053