221565981 (number)

221565981 is an odd 9-digits composite number following 221565980 and preceding 221565982. In scientific notation, it is written as 2.21565981 × 10^8. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 109992960 positive integers (up to 221565981) that are relatively prime to 221565981.

Interesting facts

Basic properties

Name

Name two hundred twenty-one million five hundred sixty-five thousand nine hundred eighty-one

Notation

Scientific notation 2.21565981 × 10^8
Engineering notation 2.21565981 × 10^6

Prime Factorization of 221565981

Prime Factorization 21 × 17 × 13 × 47741

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 221565981
Product of the distinct prime numbers

The prime factorization of 221565981 is 21 × 17 × 13 × 47741. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 7, 53, 2, 76, 71, 1354, 1497, 53259, 3190, 158831, 307750, 7278591, 122495, 13679354, 89512361, 451571519, 759136191, 9071461546, 1630951049

Basic calculations (n = 221565981)

Multiplication

n×y
n×2 443131962
n×3 664697943
n×4 886263924
n×5 1107829905

Division

n÷y
n÷2 110782990.5
n÷3 73855327
n÷3 55391495.25
n÷5 44313196.2

Exponentiation

ny
n2 49091483936492361
n3 1.0877002797135E+25
n4 2.4099737950869E+33
n5 5.3396820809272E+41

Nth Root

y√n
2√n 14885.092576131
3√n 605.11004168251
4√n 122.00447768886
5√n 46.676750705391

Divisors of 221565981

1, 13, 17, 21, 221, 273, 357, 4641, 47741, 620633, 811597, 1002561, 10550761, 13033293, 17043537, 221565981

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -221565980
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 221565981 can be divided by 16 positive divisors. The sum of these divisors (counting 221565981) is 1, the average is 0.0625.

Base conversion 221565981

Base System Value
2 Binary 1101001101001101010000011101
3 Ternary 120102220201101110
4 Quaternary 31031031100131
5 Quinary 423210102411
6 Senary 33552532233
8 Octal 1515152035
10 Decimal 221565981
12 Duodecimal 62251079
16 Hexadecimal d34d41d
20 Vigesimal 394fej1
36 Base36 3nwxel

Cryptographic Hash Functions

md5 dff072e484ce747fd6d067109037f661
sha1 da0cb8c5fee2fec371f8ec503b042ac0fbe1c8b9
sha256 b521c3b2805d4e8bf6bea6d44068f9b9af7b189e343a051860e6c3267b91f192
sha512 60c70ee8bea75a3631026ef7c3898d00637c3b0b000edcd85ec0451ffa06c181ef0c18a6d3e7487fd0e160a9878d334596699e08ddb769124c10b79a29d13a93
ripemd-160 21c9e04f9eb44384f5fed79a2b2b914392e7d3ec

221565981 as geometric shapes

Circle

Radius = n
Diameter 443131962
Circumference 1392140116.39
Area 1.5422544528871E+17

Sphere

Radius = n
Volume 4.5561482774072E+25
Surface area 6.1690178115482E+17
Circumference 1392140116.39

Square

Length = n
Perimeter 886263924
Area 49091483936492361
Diagonal 313341615.2907

Cube

Length = n
Surface area 294548903618954166
Volume 1.0877002797135E+25
Space diagonal 383763536.32084

Equilateral Triangle

Length = n
Perimeter 664697943
Area 2.1257236099239E+16
Altitude 191881768.16042

Triangular Pyramid

Length = n
Surface area 2.1257236099239E+16
Volume 1.2818670728065E+24
Height 104447205.0969