21405061 (number)

21405061 is an odd 8-digits composite number following 21405060 and preceding 21405062. In scientific notation, it is written as 2.1405061 × 10^7. The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors. There are 21374892 positive integers (up to 21405061) that are relatively prime to 21405061.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred five thousand sixty-one

Notation

Scientific notation 2.1405061 × 10^7
Engineering notation 2.1405061 × 10^6

Prime Factorization of 21405061

Prime Factorization 727 × 29443

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21405061
Product of the distinct prime numbers

The prime factorization of 21405061 is 727 × 29443. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21405061)

Multiplication

n×y
n×2 42810122
n×3 64215183
n×4 85620244
n×5 107025305

Division

n÷y
n÷2 10702530.5
n÷3 7135020.3333333
n÷3 5351265.25
n÷5 4281012.2

Exponentiation

ny
n2 458176636413721
n3 9.8072988512105E+21
n4 2.0992583015539E+29
n5 4.4934751999518E+36

Nth Root

y√n
2√n 4626.5603854267
3√n 277.65499444049
4√n 68.018823758036
5√n 29.248479501491

Divisors of 21405061

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21405060
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21405061 can be divided by 4 positive divisors. The sum of these divisors (counting 21405061) is 1, the average is 0.25.

Base conversion 21405061

Base System Value
2 Binary 1010001101001110110000101
3 Ternary 1111021111020001
4 Quaternary 1101221312011
5 Quinary 20434430221
6 Senary 2042441301
8 Octal 121516605
10 Decimal 21405061
12 Duodecimal 7203231
16 Hexadecimal 1469d85
20 Vigesimal 6dfcd1
36 Base36 cqs91

Cryptographic Hash Functions

md5 90a7a35a9a203d811174f69dfbf5e5ee
sha1 f70e1fd706a33c993d6cb5c0f5996b2a7e01f9fa
sha256 083e3668bf3920e4c8973bebac61711bdab4415975c28869a04f43e146f0af43
sha512 8b3817632198171802213a8a6a02342c52742fb66760cd2924cd8b0efb25b666aa3fb0ee8a420e1f7ca1f36e02204e08dfb09773623071e3fd61c8e2415529f6
ripemd-160 c113a843bf3986109bc2b43bf472a8261e3b357a

21405061 as geometric shapes

Circle

Radius = n
Diameter 42810122
Circumference 134491964.77448
Area 1.4394043550038E+15

Sphere

Radius = n
Volume 4.1080717363363E+22
Surface area 5.7576174200153E+15
Circumference 134491964.77448

Square

Length = n
Perimeter 85620244
Area 458176636413721
Diagonal 30271327.569623

Cube

Length = n
Surface area 2749059818482326
Volume 9.8072988512105E+21
Space diagonal 37074653.191111

Equilateral Triangle

Length = n
Perimeter 64215183
Area 1.9839630327739E+14
Altitude 18537326.595556

Triangular Pyramid

Length = n
Surface area 1.9839630327739E+14
Volume 1.1558012538023E+21
Height 10090442.523208