215940981 (number)

215940981 is an odd 9-digits composite number following 215940980 and preceding 215940982. In scientific notation, it is written as 2.15940981 × 10^8. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 143787392 positive integers (up to 215940981) that are relatively prime to 215940981.

Interesting facts

Basic properties

Name

Name two hundred fifteen million nine hundred forty thousand nine hundred eighty-one

Notation

Scientific notation 2.15940981 × 10^8
Engineering notation 2.15940981 × 10^6

Prime Factorization of 215940981

Prime Factorization 3 × 839 × 85793

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 215940981
Product of the distinct prime numbers

The prime factorization of 215940981 is 3 × 839 × 85793. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 8, 71, 57, 359, 77, 4120, 3777, 71372, 77292, 698728, 288472, 3388886, 2068537, 17536885, 36873783, 115123484, 190089562, 4122426102, 3036663599

Basic calculations (n = 215940981)

Multiplication

n×y
n×2 431881962
n×3 647822943
n×4 863763924
n×5 1079704905

Division

n÷y
n÷2 107970490.5
n÷3 71980327
n÷3 53985245.25
n÷5 43188196.2

Exponentiation

ny
n2 46630507275242361
n3 1.0069437485543E+25
n4 2.1744042087464E+33
n5 4.6954297792723E+41

Nth Root

y√n
2√n 14694.93045237
3√n 599.94534779982
4√n 121.22264826496
5√n 46.437305704157

Divisors of 215940981

1, 3, 839, 2517, 85793, 257379, 71980327, 215940981

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 -215940980
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 215940981 can be divided by 8 positive divisors. The sum of these divisors (counting 215940981) is 1, the average is 0.125.

Base conversion 215940981

Base System Value
2 Binary 1100110111101111111101110101
3 Ternary 120001022221100010
4 Quaternary 30313233331311
5 Quinary 420240102411
6 Senary 33232210433
8 Octal 1467577565
10 Decimal 215940981
12 Duodecimal 60399a19
16 Hexadecimal cdeff75
20 Vigesimal 379cc91
36 Base36 3kkd4l

Cryptographic Hash Functions

md5 481acbdd4b283c11fe2d00b5078b84b9
sha1 f842073e5a13289e9b36ea9bfe3815e6bbefe7cd
sha256 b40577a14aec6a80d5b8a1d145dea282c4049c6c5bb9b1687b4458ddef26de77
sha512 44c9d0c3460104c9e268c1ace3df22564831d9bb4d22e44430cc7b5b6ff788782ea1d4bf115252c35ec1f34d0006c9edb170f632db542cc44bbe1f5a25cfee98
ripemd-160 f7a11e881ddf70e7990199e77925bc6e31b3bf85

215940981 as geometric shapes

Circle

Radius = n
Diameter 431881962
Circumference 1356797199.0371
Area 1.4649405908907E+17

Sphere

Radius = n
Volume 4.2178761107153E+25
Surface area 5.8597623635627E+17
Circumference 1356797199.0371

Square

Length = n
Perimeter 863763924
Area 46630507275242361
Diagonal 305386664.00235

Cube

Length = n
Surface area 279783043651454166
Volume 1.0069437485543E+25
Space diagonal 374020750.52827

Equilateral Triangle

Length = n
Perimeter 647822943
Area 2.0191601945857E+16
Altitude 187010375.26413

Triangular Pyramid

Length = n
Surface area 2.0191601945857E+16
Volume 1.186694588127E+24
Height 101795554.66745