21031947 (number)

21031947 is an odd 8-digits composite number following 21031946 and preceding 21031948. In scientific notation, it is written as 2.1031947 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors. There are 13618368 positive integers (up to 21031947) that are relatively prime to 21031947.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand nine hundred forty-seven

Notation

Scientific notation 2.1031947 × 10^7
Engineering notation 2.1031947 × 10^6

Prime Factorization of 21031947

Prime Factorization 9 × 3 × 37 × 37 × 569

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 568431
Product of the distinct prime numbers

The prime factorization of 21031947 is 9 × 3 × 37 × 37 × 569. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 3, 23, 81, 135, 737, 3233, 7307, 76664, 42586, 103763, 816606, 475310, 1885510, 54721075, 4280378, 953982732, 820109275, 2231020107, 9077621232

Basic calculations (n = 21031947)

Multiplication

n×y
n×2 42063894
n×3 63095841
n×4 84127788
n×5 105159735

Division

n÷y
n÷2 10515973.5
n÷3 7010649
n÷3 5257986.75
n÷5 4206389.4

Exponentiation

ny
n2 442342794610809
n3 9.3033302120864E+21
n4 1.956671479441E+29
n5 4.1152610852015E+36

Nth Root

y√n
2√n 4586.0600737452
3√n 276.03225048471
4√n 67.720455356895
5√n 29.145794316597

Divisors of 21031947

1, 3, 9, 27, 37, 111, 333, 569, 999, 1369, 1707, 4107, 5121, 12321, 15363, 21053, 36963, 63159, 189477, 568431, 778961, 2336883, 7010649, 21031947

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21031946
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031947 can be divided by 24 positive divisors. The sum of these divisors (counting 21031947) is 1, the average is 0.041666666666667.

Base conversion 21031947

Base System Value
2 Binary 1010000001110110000001011
3 Ternary 1110120112102000
4 Quaternary 1100032300023
5 Quinary 20341010242
6 Senary 2030442043
8 Octal 120166013
10 Decimal 21031947
12 Duodecimal 7063323
16 Hexadecimal 140ec0b
20 Vigesimal 6b8jh7
36 Base36 ciscr

Cryptographic Hash Functions

md5 004a2fa236013d67a33d30d85a0408b7
sha1 55e8a8bb37cbab547305e93131fd0e9346d576c1
sha256 49e5e71b2fcca22c7e0ec751006b9c7289e72831f213d9283c396c1221ce189a
sha512 4749203c5685ee84a9d4697f7710ac939c04ce51388acfbd876b8149d142c892f98335f865a3b752beb834c32499185791e4c9e98610e7e4574716fd4f8012d3
ripemd-160 ebf38cd1485b0b62ef643bae566b5985f0018395

21031947 as geometric shapes

Circle

Radius = n
Diameter 42063894
Circumference 132147620.37178
Area 1.3896608739177E+15

Sphere

Radius = n
Volume 3.8969698464281E+22
Surface area 5.5586434956708E+15
Circumference 132147620.37178

Square

Length = n
Perimeter 84127788
Area 442342794610809
Diagonal 29743664.690512

Cube

Length = n
Surface area 2654056767664854
Volume 9.3033302120864E+21
Space diagonal 36428400.786096

Equilateral Triangle

Length = n
Perimeter 63095841
Area 1.9154004865698E+14
Altitude 18214200.393048

Triangular Pyramid

Length = n
Surface area 1.9154004865698E+14
Volume 1.0964079800973E+21
Height 9914554.8968374