221512981 (number)

221512981 is an odd 9-digits composite number following 221512980 and preceding 221512982. In scientific notation, it is written as 2.21512981 × 10^8. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 219770880 positive integers (up to 221512981) that are relatively prime to 221512981.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.21512981 × 10^8
Engineering notation 2.21512981 × 10^6

Prime Factorization of 221512981

Prime Factorization 293 × 241 × 3137

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 221512981
Product of the distinct prime numbers

The prime factorization of 221512981 is 293 × 241 × 3137. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 6, 81, 76, 908, 187, 2464, 5347, 83446, 79243, 381766, 764882, 2843156, 3644511, 32253836, 7158218, 885649698, 857893826, 116390410, 6032645686

Basic calculations (n = 221512981)

Multiplication

n×y
n×2 443025962
n×3 664538943
n×4 886051924
n×5 1107564905

Division

n÷y
n÷2 110756490.5
n÷3 73837660.333333
n÷3 55378245.25
n÷5 44302596.2

Exponentiation

ny
n2 49068000751506361
n3 1.0869199118176E+25
n4 2.4076686977498E+33
n5 5.3332987049895E+41

Nth Root

y√n
2√n 14883.312164972
3√n 605.06178910392
4√n 121.99718097141
5√n 46.674517416222

Divisors of 221512981

1, 241, 293, 3137, 70613, 756017, 919141, 221512981

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 -221512980
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 221512981 can be divided by 8 positive divisors. The sum of these divisors (counting 221512981) is 1, the average is 0.125.

Base conversion 221512981

Base System Value
2 Binary 1101001101000000010100010101
3 Ternary 120102211000200111
4 Quaternary 31031000110111
5 Quinary 423201403411
6 Senary 33551443021
8 Octal 1515002425
10 Decimal 221512981
12 Duodecimal 62226471
16 Hexadecimal d340515
20 Vigesimal 3949291
36 Base36 3nvsid

Cryptographic Hash Functions

md5 826a1ff772814ce367acb789c12c0346
sha1 8d5de4f693d6819590e12be008a4ff6445e9663b
sha256 2ab7ee533e3675b8706a87b1d13529dac70b41d4b46cdf0c650621cd01d09e61
sha512 a6e443adf343ecc7bbae8fbfd4566b27b87ddc4a7163f155be18a3872408bf628f4f196cff529cca55dad0df05dc50af5bab14ba467f4a169055c043855fb85d
ripemd-160 d3ff1b8726a141087f29427e5c64a53c63a29728

221512981 as geometric shapes

Circle

Radius = n
Diameter 443025962
Circumference 1391807107.5688
Area 1.5415167068727E+17

Sphere

Radius = n
Volume 4.552879480009E+25
Surface area 6.1660668274908E+17
Circumference 1391807107.5688

Square

Length = n
Perimeter 886051924
Area 49068000751506361
Diagonal 313266661.97189

Cube

Length = n
Surface area 294408004509038166
Volume 1.0869199118176E+25
Space diagonal 383671737.62804

Equilateral Triangle

Length = n
Perimeter 664538943
Area 2.1247067581859E+16
Altitude 191835868.81402

Triangular Pyramid

Length = n
Surface area 2.1247067581859E+16
Volume 1.2809474004216E+24
Height 104422220.6573