221520981 (number)

221520981 is an odd 9-digits composite number following 221520980 and preceding 221520982. In scientific notation, it is written as 2.21520981 × 10^8. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 121651200 positive integers (up to 221520981) that are relatively prime to 221520981.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.21520981 × 10^8
Engineering notation 2.21520981 × 10^6

Prime Factorization of 221520981

Prime Factorization 3 × 4807 × 15361

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 221520981
Product of the distinct prime numbers

The prime factorization of 221520981 is 3 × 4807 × 15361. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 4, 58, 20, 697, 830, 5070, 1297, 10767, 7459, 130674, 727538, 9997046, 624788, 16084427, 3991734, 903098919, 929876691, 4593874211, 1423357762

Basic calculations (n = 221520981)

Multiplication

n×y
n×2 443041962
n×3 664562943
n×4 886083924
n×5 1107604905

Division

n÷y
n÷2 110760490.5
n÷3 73840327
n÷3 55380245.25
n÷5 44304196.2

Exponentiation

ny
n2 49071545023202361
n3 1.0870376792725E+25
n4 2.4080165309642E+33
n5 5.334261842034E+41

Nth Root

y√n
2√n 14883.580919926
3√n 605.06907300518
4√n 121.99828244663
5√n 46.674854543865

Divisors of 221520981

1, 3, 4807, 14421, 15361, 46083, 73840327, 221520981

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -221520980
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 221520981 can be divided by 8 positive divisors. The sum of these divisors (counting 221520981) is 1, the average is 0.125.

Base conversion 221520981

Base System Value
2 Binary 1101001101000010010001010101
3 Ternary 120102211102122210
4 Quaternary 31031002101111
5 Quinary 423202132411
6 Senary 33551544033
8 Octal 1515022125
10 Decimal 221520981
12 Duodecimal 6222b019
16 Hexadecimal d342455
20 Vigesimal 394a291
36 Base36 3nvyol

Cryptographic Hash Functions

md5 d15b9513f31726c8402daab5f433f663
sha1 06a6100fc613679b127c7308c6153deae69e52ef
sha256 07810576453dfe0270fad537bc0f372f94586bf3cb6ba9b65505da75221b819c
sha512 ec179de2ac4a0c59e07c24b3d3860320edc9398f8d97ea94f97da243ae0bf6b38ee8a67d061499c8ac5a15706aeef1da0af6e434feeec199c276c9477332d9ae
ripemd-160 6a1ebfae041bbc3f036ae94784eba6254c2200e2

221520981 as geometric shapes

Circle

Radius = n
Diameter 443041962
Circumference 1391857373.0512
Area 1.5416280534519E+17

Sphere

Radius = n
Volume 4.5533727831706E+25
Surface area 6.1665122138077E+17
Circumference 1391857373.0512

Square

Length = n
Perimeter 886083924
Area 49071545023202361
Diagonal 313277975.68039

Cube

Length = n
Surface area 294429270139214166
Volume 1.0870376792725E+25
Space diagonal 383685594.0345

Equilateral Triangle

Length = n
Perimeter 664562943
Area 2.1248602296523E+16
Altitude 191842797.01725

Triangular Pyramid

Length = n
Surface area 2.1248602296523E+16
Volume 1.2810861906982E+24
Height 104425991.89346