221489781 (number)

221489781 is an odd 9-digits composite number following 221489780 and preceding 221489782. In scientific notation, it is written as 2.21489781 × 10^8. The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors. There are 147659852 positive integers (up to 221489781) that are relatively prime to 221489781.

Interesting facts

Basic properties

Name

Name two hundred twenty-one million four hundred eighty-nine thousand seven hundred eighty-one

Notation

Scientific notation 2.21489781 × 10^8
Engineering notation 2.21489781 × 10^6

Prime Factorization of 221489781

Prime Factorization 3 × 73829927

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 221489781
Product of the distinct prime numbers

The prime factorization of 221489781 is 3 × 73829927. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 4, 91, 52, 595, 916, 356, 4517, 33098, 76051, 494967, 768751, 5349400, 8525784, 18008772, 95680007, 28850104, 736006890, 4001174062, 1235720644

Basic calculations (n = 221489781)

Multiplication

n×y
n×2 442979562
n×3 664469343
n×4 885959124
n×5 1107448905

Division

n÷y
n÷2 110744890.5
n÷3 73829927
n÷3 55372445.25
n÷5 44297956.2

Exponentiation

ny
n2 49057723087427961
n3 1.0865784342993E+25
n4 2.4066601945228E+33
n5 5.3305063942626E+41

Nth Root

y√n
2√n 14882.532748158
3√n 605.04066479849
4√n 121.99398652457
5√n 46.673539690974

Divisors of 221489781

1, 3, 73829927, 221489781

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 -221489780
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 221489781 can be divided by 4 positive divisors. The sum of these divisors (counting 221489781) is 1, the average is 0.25.

Base conversion 221489781

Base System Value
2 Binary 1101001100111010101001110101
3 Ternary 120102202211212020
4 Quaternary 31030322221311
5 Quinary 423200133111
6 Senary 33551143353
8 Octal 1514725165
10 Decimal 221489781
12 Duodecimal 62214b59
16 Hexadecimal d33aa75
20 Vigesimal 3946491
36 Base36 3nvalx

Cryptographic Hash Functions

md5 7e2365b60dc61fb9ea995ef8823594c8
sha1 2c74b701dd49e4b1f0a07e69ae19f5fe66aacc73
sha256 0b1e3aaf1e318d248c493ee110d73f897746bc63d889fd48346ab737fc69ddf7
sha512 45672545a39a9253dee85dd95c44cd58fdf502e05ef5393212dc8161016bbe40a1a061ada89eeae7e466ebc72686025c40c790398241715c2a30551952ff4df2
ripemd-160 92eb819735ed9419102155a02989d1e131122ba7

221489781 as geometric shapes

Circle

Radius = n
Diameter 442979562
Circumference 1391661337.6696
Area 1.5411938245331E+17

Sphere

Radius = n
Volume 4.5514491023251E+25
Surface area 6.1647752981322E+17
Circumference 1391661337.6696

Square

Length = n
Perimeter 885959124
Area 49057723087427961
Diagonal 313233852.21725

Cube

Length = n
Surface area 294346338524567766
Volume 1.0865784342993E+25
Space diagonal 383631554.0493

Equilateral Triangle

Length = n
Perimeter 664469343
Area 2.1242617222767E+16
Altitude 191815777.02465

Triangular Pyramid

Length = n
Surface area 2.1242617222767E+16
Volume 1.2805449653068E+24
Height 104411284.07242