21494945 (number)

21494945 is an odd 8-digits composite number following 21494944 and preceding 21494946. In scientific notation, it is written as 2.1494945 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors. There are 16283904 positive integers (up to 21494945) that are relatively prime to 21494945.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-four thousand nine hundred forty-five

Notation

Scientific notation 2.1494945 × 10^7
Engineering notation 2.1494945 × 10^6

Prime Factorization of 21494945

Prime Factorization 5 × 53 × 29 × 2797

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21494945
Product of the distinct prime numbers

The prime factorization of 21494945 is 5 × 53 × 29 × 2797. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 10, 52, 51, 562, 208, 5362, 3442, 31171, 36143, 440550, 752056, 7306660, 2611490, 39293917, 89906261, 172323295, 96226075, 1546337353, 6212101615

Basic calculations (n = 21494945)

Multiplication

n×y
n×2 42989890
n×3 64484835
n×4 85979780
n×5 107474725

Division

n÷y
n÷2 10747472.5
n÷3 7164981.6666667
n÷3 5373736.25
n÷5 4298989

Exponentiation

ny
n2 462032660553025
n3 9.9313666267909E+21
n4 2.1347417941771E+29
n5 4.5886157455037E+36

Nth Root

y√n
2√n 4636.2641210354
3√n 278.04309409062
4√n 68.090117645921
5√n 29.27300235244

Divisors of 21494945

1, 5, 29, 53, 145, 265, 1537, 2797, 7685, 13985, 81113, 148241, 405565, 741205, 4298989, 21494945

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21494944
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21494945 can be divided by 16 positive divisors. The sum of these divisors (counting 21494945) is 1, the average is 0.0625.

Base conversion 21494945

Base System Value
2 Binary 1010001111111110010100001
3 Ternary 1111110001112002
4 Quaternary 1101333302201
5 Quinary 21000314240
6 Senary 2044413345
8 Octal 121776241
10 Decimal 21494945
12 Duodecimal 7247255
16 Hexadecimal 147fca1
20 Vigesimal 6e6h75
36 Base36 csplt

Cryptographic Hash Functions

md5 de5864e83e125592f8b1242d1aaaaba7
sha1 fa3915129804a0bb21d83163d957299a335f7cd5
sha256 cb5ce76f7f6abf618c602ad1558f0d9bdc77e6804a43a0199464e14f8081b070
sha512 ed986f3379e19dc64a822fc1068eef3f8eca92c226caef80ae6822b176cd29910db6060a166d43186080fd7a7683a86c600f1f0ba7801e071af0dd7ac171f00f
ripemd-160 ff93339604dab6b0f3c0f7a4f55cea1bafcbd406

21494945 as geometric shapes

Circle

Radius = n
Diameter 42989890
Circumference 135056722.60263
Area 1.4515184121119E+15

Sphere

Radius = n
Volume 4.1600411246444E+22
Surface area 5.8060736484477E+15
Circumference 135056722.60263

Square

Length = n
Perimeter 85979780
Area 462032660553025
Diagonal 30398442.741464

Cube

Length = n
Surface area 2772195963318150
Volume 9.9313666267909E+21
Space diagonal 37230336.845899

Equilateral Triangle

Length = n
Perimeter 64484835
Area 2.0006601070852E+14
Altitude 18615168.422949

Triangular Pyramid

Length = n
Surface area 2.0006601070852E+14
Volume 1.1704227813756E+21
Height 10132814.247155