218970981 (number)

218970981 is an odd 9-digits composite number following 218970980 and preceding 218970982. In scientific notation, it is written as 2.18970981 × 10^8. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 145440360 positive integers (up to 218970981) that are relatively prime to 218970981.

Interesting facts

Basic properties

Name

Name two hundred eighteen million nine hundred seventy thousand nine hundred eighty-one

Notation

Scientific notation 2.18970981 × 10^8
Engineering notation 2.18970981 × 10^6

Prime Factorization of 218970981

Prime Factorization 9 × 271 × 89779

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 218970981
Product of the distinct prime numbers

The prime factorization of 218970981 is 9 × 271 × 89779. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 9, 21, 16, 799, 344, 2667, 1278, 56547, 94062, 56396, 268717, 4480532, 7155568, 97139009, 48284384, 658608752, 670578679, 4197228848, 9951964510

Basic calculations (n = 218970981)

Multiplication

n×y
n×2 437941962
n×3 656912943
n×4 875883924
n×5 1094854905

Division

n÷y
n÷2 109485490.5
n÷3 72990327
n÷3 54742745.25
n÷5 43794196.2

Exponentiation

ny
n2 47948290520102361
n3 1.049928421246E+25
n4 2.2990385638001E+33
n5 5.0342272967215E+41

Nth Root

y√n
2√n 14797.668093318
3√n 602.73839134124
4√n 121.64566615099
5√n 46.566898421884

Divisors of 218970981

1, 9, 271, 2439, 89779, 808011, 24330109, 218970981

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 -218970980
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 218970981 can be divided by 8 positive divisors. The sum of these divisors (counting 218970981) is 1, the average is 0.125.

Base conversion 218970981

Base System Value
2 Binary 1101000011010011101101100101
3 Ternary 120021000212201100
4 Quaternary 31003103231211
5 Quinary 422024032411
6 Senary 33421150313
8 Octal 1503235545
10 Decimal 218970981
12 Duodecimal 613bb399
16 Hexadecimal d0d3b65
20 Vigesimal 388b791
36 Base36 3mdb39

Cryptographic Hash Functions

md5 5f5be3bf0cc4e3265e79d269af1263c2
sha1 158ae144157cc17f8af2ef80b02134aacda1b006
sha256 e794ae3b9f729db719015dbbf427c803fc03f9494ef354d08cac5b48d6ff1d7e
sha512 48fba99d13fee1ea12527257feeb40e2d097ae28884349213234d69bd20fc9076e186d30a2b0ae9f34515d174c084a6e32f3c447e6d5529e2988ccac1feaf00a
ripemd-160 bcc8a91874aa334a5da8e4ab445c7cb4e02465d8

218970981 as geometric shapes

Circle

Radius = n
Diameter 437941962
Circumference 1375835250.5179
Area 1.5063399725014E+17

Sphere

Radius = n
Volume 4.397929886642E+25
Surface area 6.0253598900057E+17
Circumference 1375835250.5179

Square

Length = n
Perimeter 875883924
Area 47948290520102361
Diagonal 309671731.09634

Cube

Length = n
Surface area 287689743120614166
Volume 1.049928421246E+25
Space diagonal 379268864.4752

Equilateral Triangle

Length = n
Perimeter 656912943
Area 2.0762218829223E+16
Altitude 189634432.2376

Triangular Pyramid

Length = n
Surface area 2.0762218829223E+16
Volume 1.2373525107059E+24
Height 103223910.36545