21556540 (number)

21556540 is an even 8-digits composite number following 21556539 and preceding 21556541. In scientific notation, it is written as 2.1556540 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 12 positive divisors. There are 8622608 positive integers (up to 21556540) that are relatively prime to 21556540.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred fifty-six thousand five hundred forty

Notation

Scientific notation 2.1556540 × 10^7
Engineering notation 2.1556540 × 10^6

Prime Factorization of 21556540

Prime Factorization 2 × 2 × 5 × 1077827

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10778270
Product of the distinct prime numbers

The prime factorization of 21556540 is 2 × 2 × 5 × 1077827. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 10, 66, 30, 287, 852, 5047, 9855, 899, 24491, 817293, 611272, 9737716, 9113474, 40420751, 7234521, 514185944, 201007298, 8397238018, 3444507250

Basic calculations (n = 21556540)

Multiplication

n×y
n×2 43113080
n×3 64669620
n×4 86226160
n×5 107782700

Division

n÷y
n÷2 10778270
n÷3 7185513.3333333
n÷3 5389135
n÷5 4311308

Exponentiation

ny
n2 464684416771600
n3 1.0016988217514E+22
n4 2.1593160719036E+29
n5 4.6547383276633E+36

Nth Root

y√n
2√n 4642.9021096724
3√n 278.30842363359
4√n 68.13884435234
5√n 29.289759849658

Divisors of 21556540

1, 2, 4, 5, 10, 20, 1077827, 2155654, 4311308, 5389135, 10778270, 21556540

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21556539
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21556540 can be divided by 12 positive divisors. The sum of these divisors (counting 21556540) is 1, the average is 0.083333333333333.

Base conversion 21556540

Base System Value
2 Binary 1010010001110110100111100
3 Ternary 1111120012000101
4 Quaternary 1102032310330
5 Quinary 21004302130
6 Senary 2050010444
8 Octal 122166474
10 Decimal 21556540
12 Duodecimal 7276a24
16 Hexadecimal 148ed3c
20 Vigesimal 6eeb70
36 Base36 cu14s

Cryptographic Hash Functions

md5 b43a44295a9ff52efdfe66c851cb5590
sha1 88bbe9e1ca4abcbbd06f36ebdac65ef81b625170
sha256 c61ca5100dcd05ee18f6ebbc6a3ee3f3b00e685858a0403f700f20074a2f0366
sha512 2b7cb6d4941ff6a3a12def2edf21f838a32e5935db919296e860a6f8fc37af915d013384a2c6ec5b99975f7515cf0f7649e49048d22508f788e5a121a5cc1b63
ripemd-160 bdbd30b2a5436bcd8b8129e1f42b86353438d369

21556540 as geometric shapes

Circle

Radius = n
Diameter 43113080
Circumference 135443735.40163
Area 1.4598491499673E+15

Sphere

Radius = n
Volume 4.1959062126982E+22
Surface area 5.8393965998693E+15
Circumference 135443735.40163

Square

Length = n
Perimeter 86226160
Area 464684416771600
Diagonal 30485551.225838

Cube

Length = n
Surface area 2788106500629600
Volume 1.0016988217514E+22
Space diagonal 37337022.515391

Equilateral Triangle

Length = n
Perimeter 64669620
Area 2.0121425483348E+14
Altitude 18668511.257695

Triangular Pyramid

Length = n
Surface area 2.0121425483348E+14
Volume 1.1805133826116E+21
Height 10161850.408613