21081025 (number)

21081025 is an odd 8-digits composite number following 21081024 and preceding 21081026. In scientific notation, it is written as 2.1081025 × 10^7. The sum of its digits is 19. It has a total of 4 prime factors and 12 positive divisors. There are 14454720 positive integers (up to 21081025) that are relatively prime to 21081025.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-one thousand twenty-five

Notation

Scientific notation 2.1081025 × 10^7
Engineering notation 2.1081025 × 10^6

Prime Factorization of 21081025

Prime Factorization 25 × 7 × 7 × 17209

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 3011575
Product of the distinct prime numbers

The prime factorization of 21081025 is 25 × 7 × 7 × 17209. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 4, 60, 35, 398, 254, 6747, 6748, 72621, 47696, 991005, 615924, 4251053, 3893933, 71818068, 49032673, 941685734, 818949931, 1621387225, 3151359713

Basic calculations (n = 21081025)

Multiplication

n×y
n×2 42162050
n×3 63243075
n×4 84324100
n×5 105405125

Division

n÷y
n÷2 10540512.5
n÷3 7027008.3333333
n÷3 5270256.25
n÷5 4216205

Exponentiation

ny
n2 444409615050625
n3 9.3686102051226E+21
n4 1.9749990594944E+29
n5 4.1635004548179E+36

Nth Root

y√n
2√n 4591.4077361959
3√n 276.24679056897
4√n 67.759927215102
5√n 29.159383966757

Divisors of 21081025

1, 7, 25, 49, 175, 1225, 17209, 120463, 430225, 843241, 3011575, 21081025

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 -21081024
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 21081025 can be divided by 12 positive divisors. The sum of these divisors (counting 21081025) is 1, the average is 0.083333333333333.

Base conversion 21081025

Base System Value
2 Binary 1010000011010101111000001
3 Ternary 1110200000201201
4 Quaternary 1100122233001
5 Quinary 20344043100
6 Senary 2031501201
8 Octal 120325701
10 Decimal 21081025
12 Duodecimal 7087801
16 Hexadecimal 141abc1
20 Vigesimal 6bf2b5
36 Base36 cju81

Cryptographic Hash Functions

md5 b32fc05fd083f20fe2220b3beb2c3b39
sha1 e5035773472416c7723cd9bca9a88aa52e384f19
sha256 f1cafdfd63f741f676b61e0f13c647305c31a2e48973c3f5e1b2c7c04c4aa10e
sha512 7171b086e5d9cd5ae4eed94ba27f264665749897c135ff95745c11faa8dd588dae9979e441f1dd04bc629559fe44bbb300be9836441bc8c5f9a7d6f4c4e87c9c
ripemd-160 408695b19344469bd8fb92d935fa6fc51112d18f

21081025 as geometric shapes

Circle

Radius = n
Diameter 42162050
Circumference 132455986.54029
Area 1.3961539818277E+15

Sphere

Radius = n
Volume 3.9243142659679E+22
Surface area 5.5846159273108E+15
Circumference 132455986.54029

Square

Length = n
Perimeter 84324100
Area 444409615050625
Diagonal 29813071.463726

Cube

Length = n
Surface area 2666457690303750
Volume 9.3686102051226E+21
Space diagonal 36513406.37563

Equilateral Triangle

Length = n
Perimeter 63243075
Area 1.9243500815995E+14
Altitude 18256703.187815

Triangular Pyramid

Length = n
Surface area 1.9243500815995E+14
Volume 1.1041013010559E+21
Height 9937690.4879088