261421 (number)

261421 is an odd 6-digits composite number following 261420 and preceding 261422. In scientific notation, it is written as 2.61421 × 10^5. The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors. There are 247644 positive integers (up to 261421) that are relatively prime to 261421.

Interesting facts

Basic properties

Name

Name two hundred sixty-one thousand four hundred twenty-one

Notation

Scientific notation 2.61421 × 10^5
Engineering notation 2.61421 × 10^3

Prime Factorization of 261421

Prime Factorization 19 × 13759

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 261421
Product of the distinct prime numbers

The prime factorization of 261421 is 19 × 13759. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 261421)

Multiplication

n×y
n×2 522842
n×3 784263
n×4 1045684
n×5 1307105

Division

n÷y
n÷2 130710.5
n÷3 87140.333333333
n÷3 65355.25
n÷5 52284.2

Exponentiation

ny
n2 68340939241
n3 17865756677321461
n4 4.6704839763421E+21
n5 1.2209625915793E+27

Nth Root

y√n
2√n 511.29345781068
3√n 63.941107934194
4√n 22.6117990839
5√n 12.119036523479

Divisors of 261421

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 -261420
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 261421 can be divided by 4 positive divisors. The sum of these divisors (counting 261421) is 1, the average is 0.25.

Base conversion 261421

Base System Value
2 Binary 111111110100101101
3 Ternary 111021121021
4 Quaternary 333310231
5 Quinary 31331141
6 Senary 5334141
8 Octal 776455
10 Decimal 261421
12 Duodecimal 107351
16 Hexadecimal 3fd2d
20 Vigesimal 1cdb1
36 Base36 5lpp

Cryptographic Hash Functions

md5 e16f4e5ecab42f52ecd03fc2fdc11cef
sha1 c4d37abde54b1243023af576633ed50d9a098696
sha256 c409ec683ea3f73ea65f97c37c0b911eb469ca63b5644ab6d8f78c1127581e2c
sha512 dcc29284feca5e477b10c33bb814e18c21379ee2eef12f36cf339311ca120dfa79f5d946186655b312ef9b190d3f87d5ad12835620506074361b0be2dd595a8a
ripemd-160 adc311f1c2fd93b6d73e47785532e6379ca2bdce

261421 as geometric shapes

Circle

Radius = n
Diameter 522842
Circumference 1642556.5861882
Area 214699392658.95

Sphere

Radius = n
Volume 7.4835906571061E+16
Surface area 858797570635.81
Circumference 1642556.5861882

Square

Length = n
Perimeter 1045684
Area 68340939241
Diagonal 369705.12368914

Cube

Length = n
Surface area 410045635446
Volume 17865756677321461
Space diagonal 452794.45416546

Equilateral Triangle

Length = n
Perimeter 784263
Area 29592494750.597
Altitude 226397.22708273

Triangular Pyramid

Length = n
Surface area 29592494750.597
Volume 2.1054996162605E+15
Height 123235.04122971