20949990 (number)

20949990 is an even 8-digits composite number following 20949989 and preceding 20949991. In scientific notation, it is written as 2.0949990 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 5572320 positive integers (up to 20949990) that are relatively prime to 20949990.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0949990 × 10^7
Engineering notation 2.0949990 × 10^6

Prime Factorization of 20949990

Prime Factorization 2 × 15 × 1223 × 571

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20949990
Product of the distinct prime numbers

The prime factorization of 20949990 is 2 × 15 × 1223 × 571. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 2, 53, 56, 246, 975, 6997, 8269, 30955, 17095, 408711, 276499, 2444406, 9545417, 60310541, 93523670, 13915786, 380769980, 6004248040, 3252477342

Basic calculations (n = 20949990)

Multiplication

n×y
n×2 41899980
n×3 62849970
n×4 83799960
n×5 104749950

Division

n÷y
n÷2 10474995
n÷3 6983330
n÷3 5237497.5
n÷5 4189998

Exponentiation

ny
n2 438902081000100
n3 9.1949942079313E+21
n4 1.9263503670622E+29
n5 4.0357020926449E+36

Nth Root

y√n
2√n 4577.1159041475
3√n 275.67323753
4√n 67.654385697806
5√n 29.123043841825

Divisors of 20949990

1, 2, 15, 30, 571, 1142, 1223, 2446, 8565, 17130, 18345, 36690, 698333, 1396666, 10474995, 20949990

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 -20949989
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 20949990 can be divided by 16 positive divisors. The sum of these divisors (counting 20949990) is 1, the average is 0.0625.

Base conversion 20949990

Base System Value
2 Binary 1001111111010101111100110
3 Ternary 1110102100222120
4 Quaternary 1033322233212
5 Quinary 20330344430
6 Senary 2025010410
8 Octal 117725746
10 Decimal 20949990
12 Duodecimal 7023a06
16 Hexadecimal 13fabe6
20 Vigesimal 6aieja
36 Base36 ch146

Cryptographic Hash Functions

md5 e3c149b19b3582546ea1ebb451423c96
sha1 0194333507229f1232c1bad9497af856e2450107
sha256 e4d5826b3192c4f2eddf9849f770ef495ea37eff0756c4baa0d5b383eafbe035
sha512 bea1d7abf4b8f5cbf6c0cc9324212a86eab9eb8f7cb6a6b1c9f11313343f5c22c9e39050827a1b30e241eb9050314de5e8bb7f8a5c25bd58412700c8f4db06f4
ripemd-160 36b4466f5e6ea938bf5a4e1382dbe85a7f6ffaa7

20949990 as geometric shapes

Circle

Radius = n
Diameter 41899980
Circumference 131632669.35356
Area 1.3788515533152E+15

Sphere

Radius = n
Volume 3.851590167125E+22
Surface area 5.5154062132607E+15
Circumference 131632669.35356

Square

Length = n
Perimeter 83799960
Area 438902081000100
Diagonal 29627759.989581

Cube

Length = n
Surface area 2633412486000600
Volume 9.1949942079313E+21
Space diagonal 36286447.09806

Equilateral Triangle

Length = n
Perimeter 62849970
Area 1.9005017595997E+14
Altitude 18143223.54903

Triangular Pyramid

Length = n
Surface area 1.9005017595997E+14
Volume 1.0836404595665E+21
Height 9875919.9965269