21025840 (number)

21025840 is an even 8-digits composite number following 21025839 and preceding 21025841. In scientific notation, it is written as 2.1025840 × 10^7. The sum of its digits is 22. It has a total of 6 prime factors and 20 positive divisors. There are 7645440 positive integers (up to 21025840) that are relatively prime to 21025840.

Interesting facts

Basic properties

Name

Name twenty-one million twenty-five thousand eight hundred forty

Notation

Scientific notation 2.1025840 × 10^7
Engineering notation 2.1025840 × 10^6

Prime Factorization of 21025840

Prime Factorization 2 × 2 × 2 × 2 × 55 × 23893

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2628230
Product of the distinct prime numbers

The prime factorization of 21025840 is 2 × 2 × 2 × 2 × 55 × 23893. Since it has a total of 6 prime factors.

Most popular turbo-numbers

6, 6, 81, 69, 949, 448, 5980, 9764, 48234, 30714, 289115, 852031, 7395645, 1814228, 2071119, 71878286, 954894695, 362095924, 6286375854, 4743395093

Basic calculations (n = 21025840)

Multiplication

n×y
n×2 42051680
n×3 63077520
n×4 84103360
n×5 105129200

Division

n÷y
n÷2 10512920
n÷3 7008613.3333333
n÷3 5256460
n÷5 4205168

Exponentiation

ny
n2 442085947705600
n3 9.2952284027063E+21
n4 1.9543998515876E+29
n5 4.1092898575504E+36

Nth Root

y√n
2√n 4585.3942033374
3√n 276.00553094006
4√n 67.715538861751
5√n 29.144101519987

Divisors of 21025840

1, 2, 4, 8, 16, 55, 110, 220, 440, 880, 23893, 47786, 95572, 191144, 382288, 1314115, 2628230, 5256460, 10512920, 21025840

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21025839
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21025840 can be divided by 20 positive divisors. The sum of these divisors (counting 21025840) is 1, the average is 0.05.

Base conversion 21025840

Base System Value
2 Binary 1010000001101010000110000
3 Ternary 1110120020000211
4 Quaternary 1100031100300
5 Quinary 20340311330
6 Senary 2030353504
8 Octal 120152060
10 Decimal 21025840
12 Duodecimal 705b894
16 Hexadecimal 140d430
20 Vigesimal 6b84c0
36 Base36 cinn4

Cryptographic Hash Functions

md5 9b203aa7ced2a60076e9503102eb7d03
sha1 76295b1d0e9a550afaf95148abad00225ca5032f
sha256 82958579d88d588c9786e20029d68c5bda219e4acd4821042561313498e69fad
sha512 6b495642b4191da2045c360080b37bff2e0926ea10d351f476029c1d9466a82882f9f5f8b589424b72b646f3c5b5dfcb0c6c405490882d4c012a7d65dddf6c04
ripemd-160 2bb78319fdb183f5ad5266359691cd911c0a160e

21025840 as geometric shapes

Circle

Radius = n
Diameter 42051680
Circumference 132109248.95911
Area 1.3888539655672E+15

Sphere

Radius = n
Volume 3.8935761684508E+22
Surface area 5.5554158622688E+15
Circumference 132109248.95911

Square

Length = n
Perimeter 84103360
Area 442085947705600
Diagonal 29735028.088287

Cube

Length = n
Surface area 2652515686233600
Volume 9.2952284027063E+21
Space diagonal 36417823.151814

Equilateral Triangle

Length = n
Perimeter 63077520
Area 1.9142883068458E+14
Altitude 18208911.575907

Triangular Pyramid

Length = n
Surface area 1.9142883068458E+14
Volume 1.0954531727052E+21
Height 9911676.0294289