21249990 (number)

21249990 is an even 8-digits composite number following 21249989 and preceding 21249991. In scientific notation, it is written as 2.1249990 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors. There are 5666640 positive integers (up to 21249990) that are relatively prime to 21249990.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred forty-nine thousand nine hundred ninety

Notation

Scientific notation 2.1249990 × 10^7
Engineering notation 2.1249990 × 10^6

Prime Factorization of 21249990

Prime Factorization 2 × 5 × 3 × 3 × 236111

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 7083330
Product of the distinct prime numbers

The prime factorization of 21249990 is 2 × 5 × 3 × 3 × 236111. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 1, 66, 76, 971, 43, 5499, 3140, 43057, 22401, 430911, 342582, 774583, 6866417, 45596408, 20017672, 494197693, 742554360, 295954789, 73581726

Basic calculations (n = 21249990)

Multiplication

n×y
n×2 42499980
n×3 63749970
n×4 84999960
n×5 106249950

Division

n÷y
n÷2 10624995
n÷3 7083330
n÷3 5312497.5
n÷5 4249998

Exponentiation

ny
n2 451562075000100
n3 9.5956895781314E+21
n4 2.039083075784E+29
n5 4.3330494969578E+36

Nth Root

y√n
2√n 4609.771143994
3√n 276.98286938942
4√n 67.895295448168
5√n 29.205977480167

Divisors of 21249990

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 236111, 472222, 708333, 1180555, 1416666, 2124999, 2361110, 3541665, 4249998, 7083330, 10624995, 21249990

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21249989
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21249990 can be divided by 24 positive divisors. The sum of these divisors (counting 21249990) is 1, the average is 0.041666666666667.

Base conversion 21249990

Base System Value
2 Binary 1010001000011111111000110
3 Ternary 1110222121111200
4 Quaternary 1101003333012
5 Quinary 20414444430
6 Senary 2035243330
8 Octal 121037706
10 Decimal 21249990
12 Duodecimal 7149546
16 Hexadecimal 1443fc6
20 Vigesimal 6cg4ja
36 Base36 cngli

Cryptographic Hash Functions

md5 c34c5b57db45c6a189184c01afe80a85
sha1 407cf2428a32d27cf0b32a8550895f64c2fb97cd
sha256 58f6dfbef13e7cc9fc26b68c7516bc177274a72bc9809e54bf7e336d67dae923
sha512 1a57c0fee120f03634cb73fd61815374f6518e06c9e35242a4021a5b59b91a855dc348462cd6f560ff47d196678fe7d46517a16d5a73c2e5127a84ab1c5f21b7
ripemd-160 8bc7266d74a31b5b1ca22309e1e9e041e6ad9122

21249990 as geometric shapes

Circle

Radius = n
Diameter 42499980
Circumference 133517624.94571
Area 1.4186240974601E+15

Sphere

Radius = n
Volume 4.0194330513048E+22
Surface area 5.6744963898403E+15
Circumference 133517624.94571

Square

Length = n
Perimeter 84999960
Area 451562075000100
Diagonal 30052024.058293

Cube

Length = n
Surface area 2709372450000600
Volume 9.5956895781314E+21
Space diagonal 36806062.340331

Equilateral Triangle

Length = n
Perimeter 63749970
Area 1.9553211416785E+14
Altitude 18403031.170165

Triangular Pyramid

Length = n
Surface area 1.9553211416785E+14
Volume 1.1308628618096E+21
Height 10017341.352764