221388761 (number)

221388761 is an odd 9-digits composite number following 221388760 and preceding 221388762. In scientific notation, it is written as 2.21388761 × 10^8. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 201262500 positive integers (up to 221388761) that are relatively prime to 221388761.

Interesting facts

Basic properties

Name

Name two hundred twenty-one million three hundred eighty-eight thousand seven hundred sixty-one

Notation

Scientific notation 2.21388761 × 10^8
Engineering notation 2.21388761 × 10^6

Prime Factorization of 221388761

Prime Factorization 11 × 20126251

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 221388761
Product of the distinct prime numbers

The prime factorization of 221388761 is 11 × 20126251. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 10, 72, 82, 970, 50, 8705, 9873, 62011, 2611, 152532, 95496, 4732104, 9626866, 92062550, 66757306, 251798276, 817503018, 3258353487, 5141455325

Basic calculations (n = 221388761)

Multiplication

n×y
n×2 442777522
n×3 664166283
n×4 885555044
n×5 1106943805

Division

n÷y
n÷2 110694380.5
n÷3 73796253.666667
n÷3 55347190.25
n÷5 44277752.2

Exponentiation

ny
n2 49012983497115121
n3 1.085092368934E+25
n4 2.4022725512885E+33
n5 5.3183614371407E+41

Nth Root

y√n
2√n 14879.138449521
3√n 604.94866581723
4√n 121.98007398555
5√n 46.669281416504

Divisors of 221388761

1, 11, 20126251, 221388761

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 -221388760
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 221388761 can be divided by 4 positive divisors. The sum of these divisors (counting 221388761) is 1, the average is 0.25.

Base conversion 221388761

Base System Value
2 Binary 1101001100100001111111011001
3 Ternary 120102120201021202
4 Quaternary 31030201333121
5 Quinary 423133420021
6 Senary 33545043545
8 Octal 1514417731
10 Decimal 221388761
12 Duodecimal 621865b5
16 Hexadecimal d321fd9
20 Vigesimal 393dbi1
36 Base36 3nt4nt

Cryptographic Hash Functions

md5 a06120cf7f919dfe7fd64f7afa7805f3
sha1 fdb1054ece6c09403349dee49fdb339c696aa02e
sha256 d0d5433da3393a4bd1d78fac1c463825d09c7c1bd2485ee1ceaa89573c3c73e7
sha512 f4581f7a5ea9e525f849465ede23ab07b6977122e3e3ffa21a7e79031c238beada38e3fdbaa0484b2eb57ef93736101b975f0ce585f9aae467f5b5890d354f84
ripemd-160 30da3a34538ca183bf46300231a31e38b08fb4ef

221388761 as geometric shapes

Circle

Radius = n
Diameter 442777522
Circumference 1391026610.2899
Area 1.5397882888505E+17

Sphere

Radius = n
Volume 4.5452242862791E+25
Surface area 6.1591531554022E+17
Circumference 1391026610.2899

Square

Length = n
Perimeter 885555044
Area 49012983497115121
Diagonal 313090988.36318

Cube

Length = n
Surface area 294077900982690726
Volume 1.085092368934E+25
Space diagonal 383456582.27672

Equilateral Triangle

Length = n
Perimeter 664166283
Area 2.1223244411885E+16
Altitude 191728291.13836

Triangular Pyramid

Length = n
Surface area 2.1223244411885E+16
Volume 1.2787936204783E+24
Height 104363662.78773