21249986 (number)

21249986 is an even 8-digits composite number following 21249985 and preceding 21249987. In scientific notation, it is written as 2.1249986 × 10^7. The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors. There are 10417680 positive integers (up to 21249986) that are relatively prime to 21249986.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred forty-nine thousand nine hundred eighty-six

Notation

Scientific notation 2.1249986 × 10^7
Engineering notation 2.1249986 × 10^6

Prime Factorization of 21249986

Prime Factorization 2 × 107 × 109 × 911

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21249986
Product of the distinct prime numbers

The prime factorization of 21249986 is 2 × 107 × 109 × 911. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 7, 94, 66, 273, 597, 1642, 8255, 24009, 78399, 152280, 833527, 2793989, 1301013, 71835592, 69316517, 353436675, 254403767, 2062641619, 1153868306

Basic calculations (n = 21249986)

Multiplication

n×y
n×2 42499972
n×3 63749958
n×4 84999944
n×5 106249930

Division

n÷y
n÷2 10624993
n÷3 7083328.6666667
n÷3 5312496.5
n÷5 4249997.2

Exponentiation

ny
n2 451561905000196
n3 9.5956841593875E+21
n4 2.0390815404741E+29
n5 4.3330454187932E+36

Nth Root

y√n
2√n 4609.770710133
3√n 276.98285201009
4√n 67.895292253094
5√n 29.205976380647

Divisors of 21249986

1, 2, 107, 109, 214, 218, 911, 1822, 11663, 23326, 97477, 99299, 194954, 198598, 10624993, 21249986

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21249985
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21249986 can be divided by 16 positive divisors. The sum of these divisors (counting 21249986) is 1, the average is 0.0625.

Base conversion 21249986

Base System Value
2 Binary 1010001000011111111000010
3 Ternary 1110222121111112
4 Quaternary 1101003333002
5 Quinary 20414444421
6 Senary 2035243322
8 Octal 121037702
10 Decimal 21249986
12 Duodecimal 7149542
16 Hexadecimal 1443fc2
20 Vigesimal 6cg4j6
36 Base36 cngle

Cryptographic Hash Functions

md5 ffa1d7216d635722607d62357fa50f80
sha1 ad7819b22496ff5d369faac5e2f65ba437512568
sha256 018669de1e2c1aff650319fac2917d3112b2d4799ce9cb71ceb2d5a95c49a7f7
sha512 42407db4710998f226ba632627426133f99236ece6a3320ce979049ce9f5d33a943b7636ff9de94109da3060395ef9784ca4e56e197a069b75114c9f3ab9a065
ripemd-160 635395241c915ce3ad8134a8edf61020beba7950

21249986 as geometric shapes

Circle

Radius = n
Diameter 42499972
Circumference 133517599.81297
Area 1.4186235633896E+15

Sphere

Radius = n
Volume 4.0194307815066E+22
Surface area 5.6744942535585E+15
Circumference 133517599.81297

Square

Length = n
Perimeter 84999944
Area 451561905000196
Diagonal 30052018.401438

Cube

Length = n
Surface area 2709371430001176
Volume 9.5956841593875E+21
Space diagonal 36806055.412127

Equilateral Triangle

Length = n
Perimeter 63749958
Area 1.9553204055573E+14
Altitude 18403027.706064

Triangular Pyramid

Length = n
Surface area 1.9553204055573E+14
Volume 1.1308622232045E+21
Height 10017339.467146