221644721 (number)

221644721 is an odd 9-digits composite number following 221644720 and preceding 221644722. In scientific notation, it is written as 2.21644721 × 10^8. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 212007972 positive integers (up to 221644721) that are relatively prime to 221644721.

Interesting facts

Basic properties

Name

Name two hundred twenty-one million six hundred forty-four thousand seven hundred twenty-one

Notation

Scientific notation 2.21644721 × 10^8
Engineering notation 2.21644721 × 10^6

Prime Factorization of 221644721

Prime Factorization 23 × 9636727

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 221644721
Product of the distinct prime numbers

The prime factorization of 221644721 is 23 × 9636727. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 4, 10, 65, 293, 662, 6694, 345, 15416, 82583, 166855, 316598, 8618197, 4849788, 7411145, 27255347, 157719974, 246601849, 762353154, 8060314624

Basic calculations (n = 221644721)

Multiplication

n×y
n×2 443289442
n×3 664934163
n×4 886578884
n×5 1108223605

Division

n÷y
n÷2 110822360.5
n÷3 73881573.666667
n÷3 55411180.25
n÷5 44328944.2

Exponentiation

ny
n2 49126382347167841
n3 1.0888603309077E+25
n4 2.4134014425201E+33
n5 5.3491768938837E+41

Nth Root

y√n
2√n 14887.73726931
3√n 605.18171442066
4√n 122.01531571614
5√n 46.680067825637

Divisors of 221644721

1, 23, 9636727, 221644721

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 -221644720
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 221644721 can be divided by 4 positive divisors. The sum of these divisors (counting 221644721) is 1, the average is 0.25.

Base conversion 221644721

Base System Value
2 Binary 1101001101100000011110110001
3 Ternary 120110001201101202
4 Quaternary 31031200132301
5 Quinary 423220112341
6 Senary 33554340545
8 Octal 1515403661
10 Decimal 221644721
12 Duodecimal 6228a755
16 Hexadecimal d3607b1
20 Vigesimal 3955bg1
36 Base36 3nym5t

Cryptographic Hash Functions

md5 e2f617265925e42b09e25b30231ca13d
sha1 ed87362b52005e6d451030322cb057edc60dfc66
sha256 457b4001d76965b1c283f21dabb4f26cbdcd08881cdde6862603da99b18fe298
sha512 8eddacb79bed569ba61bbfd673800b36c457a5bc1ad4a639a8b60fb95e77ade6cfd9aa0695f80d34de637246252decc12f444994d61e70583bdb3c903713a0f3
ripemd-160 c6e2a67c3e0ae27bfbc4e49596306ee8ed5e37e9

221644721 as geometric shapes

Circle

Radius = n
Diameter 443289442
Circumference 1392634854.4011
Area 1.5433508187931E+17

Sphere

Radius = n
Volume 4.5610074884868E+25
Surface area 6.1734032751722E+17
Circumference 1392634854.4011

Square

Length = n
Perimeter 886578884
Area 49126382347167841
Diagonal 313452970.4666

Cube

Length = n
Surface area 294758294083007046
Volume 1.0888603309077E+25
Space diagonal 383899918.00143

Equilateral Triangle

Length = n
Perimeter 664934163
Area 2.1272347554337E+16
Altitude 191949959.00071

Triangular Pyramid

Length = n
Surface area 2.1272347554337E+16
Volume 1.2832342062498E+24
Height 104484323.48887