21543640 (number)

21543640 is an even 8-digits composite number following 21543639 and preceding 21543641. In scientific notation, it is written as 2.1543640 × 10^7. The sum of its digits is 25. It has a total of 6 prime factors and 32 positive divisors. There are 8242432 positive integers (up to 21543640) that are relatively prime to 21543640.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1543640 × 10^7
Engineering notation 2.1543640 × 10^6

Prime Factorization of 21543640

Prime Factorization 2 × 2 × 2 × 5 × 23 × 23417

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5385910
Product of the distinct prime numbers

The prime factorization of 21543640 is 2 × 2 × 2 × 5 × 23 × 23417. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 2, 90, 90, 360, 987, 2869, 9557, 8700, 33262, 725506, 573006, 1402045, 7266034, 90620348, 29304993, 551184970, 635117833, 3121515302, 8902307201

Basic calculations (n = 21543640)

Multiplication

n×y
n×2 43087280
n×3 64630920
n×4 86174560
n×5 107718200

Division

n÷y
n÷2 10771820
n÷3 7181213.3333333
n÷3 5385910
n÷5 4308728

Exponentiation

ny
n2 464128424449600
n3 9.9990156901094E+21
n4 2.1541519438207E+29
n5 4.6408273982973E+36

Nth Root

y√n
2√n 4641.5126844597
3√n 278.25289686453
4√n 68.128648045148
5√n 29.286253457837

Divisors of 21543640

1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23417, 46834, 93668, 117085, 187336, 234170, 468340, 538591, 936680, 1077182, 2154364, 2692955, 4308728, 5385910, 10771820, 21543640

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21543639
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21543640 can be divided by 32 positive divisors. The sum of these divisors (counting 21543640) is 1, the average is 0.03125.

Base conversion 21543640

Base System Value
2 Binary 1010010001011101011011000
3 Ternary 1111112112022121
4 Quaternary 1102023223120
5 Quinary 21003344030
6 Senary 2045431024
8 Octal 122135330
10 Decimal 21543640
12 Duodecimal 726b474
16 Hexadecimal 148bad8
20 Vigesimal 6ecj20
36 Base36 ctr6g

Cryptographic Hash Functions

md5 1efd0af1411ae88a4d67e6ea1f223fa8
sha1 ee72a5dd680e50ab58e149407f21e9c4a7665dfd
sha256 b300cad75e5ca9c3abedfb5ee83cbeb830c8eb36a731784fc5f005b65423d573
sha512 e6abb7d00a3222cfd44b9569e29de2115ae4943c5c76969557ca3ee512ac779bca406e6ac71a6e706f67de6b02481d086ac1d72a14ca5567ab3797876c49dc34
ripemd-160 9039d1e58dd97cb4e8a73c8f91f438e490244c13

21543640 as geometric shapes

Circle

Radius = n
Diameter 43087280
Circumference 135362682.31117
Area 1.4581024485731E+15

Sphere

Radius = n
Volume 4.1883778980236E+22
Surface area 5.8324097942923E+15
Circumference 135362682.31117

Square

Length = n
Perimeter 86174560
Area 464128424449600
Diagonal 30467307.870884

Cube

Length = n
Surface area 2784770546697600
Volume 9.9990156901094E+21
Space diagonal 37314679.059973

Equilateral Triangle

Length = n
Perimeter 64630920
Area 2.009735030959E+14
Altitude 18657339.529987

Triangular Pyramid

Length = n
Surface area 2.009735030959E+14
Volume 1.1783952999445E+21
Height 10155769.290295