20949915 (number)

20949915 is an odd 8-digits composite number following 20949914 and preceding 20949916. In scientific notation, it is written as 2.0949915 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 9577056 positive integers (up to 20949915) that are relatively prime to 20949915.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0949915 × 10^7
Engineering notation 2.0949915 × 10^6

Prime Factorization of 20949915

Prime Factorization 3 × 5 × 7 × 199523

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20949915
Product of the distinct prime numbers

The prime factorization of 20949915 is 3 × 5 × 7 × 199523. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 10, 69, 30, 240, 105, 8681, 2214, 37308, 49366, 39648, 412477, 7670272, 4846758, 78993475, 79808001, 365168496, 52845772, 6733259913, 2508222145

Basic calculations (n = 20949915)

Multiplication

n×y
n×2 41899830
n×3 62849745
n×4 83799660
n×5 104749575

Division

n÷y
n÷2 10474957.5
n÷3 6983305
n÷3 5237478.75
n÷5 4189983

Exponentiation

ny
n2 438898938507225
n3 9.1948954553166E+21
n4 1.9263227822277E+29
n5 4.0356298550234E+36

Nth Root

y√n
2√n 4577.107711208
3√n 275.67290856377
4√n 67.654325147828
5√n 29.123022989964

Divisors of 20949915

1, 3, 5, 7, 15, 21, 35, 105, 199523, 598569, 997615, 1396661, 2992845, 4189983, 6983305, 20949915

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 -20949914
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 20949915 can be divided by 16 positive divisors. The sum of these divisors (counting 20949915) is 1, the average is 0.0625.

Base conversion 20949915

Base System Value
2 Binary 1001111111010101110011011
3 Ternary 1110102100212210
4 Quaternary 1033322232123
5 Quinary 20330344130
6 Senary 2025010203
8 Octal 117725633
10 Decimal 20949915
12 Duodecimal 7023963
16 Hexadecimal 13fab9b
20 Vigesimal 6aieff
36 Base36 ch123

Cryptographic Hash Functions

md5 a017aa6b604d387ed0c933a635c84d3e
sha1 b98dd10b18da433a17fe38ea8dd170ca05b4097d
sha256 649c9c1cd74e5712fedb0e8a5d3afa84d54457cc57d7b14df0904e4c9f9e12a4
sha512 cb81ef2e6d4d5c0d806082f67ffbee4451364a4ffa1965096a389cdacc41d0375084e2a13e0594d6cdf814fae3a1df327eaf2873457b321840755dcdf1e96a39
ripemd-160 b27e93ad92d3b02866270847293722522a499a88

20949915 as geometric shapes

Circle

Radius = n
Diameter 41899830
Circumference 131632198.11466
Area 1.3788416808827E+15

Sphere

Radius = n
Volume 3.8515488017265E+22
Surface area 5.5153667235306E+15
Circumference 131632198.11466

Square

Length = n
Perimeter 83799660
Area 438898938507225
Diagonal 29627653.923564

Cube

Length = n
Surface area 2633393631043350
Volume 9.1948954553166E+21
Space diagonal 36286317.194249

Equilateral Triangle

Length = n
Perimeter 62849745
Area 1.9004881522064E+14
Altitude 18143158.597125

Triangular Pyramid

Length = n
Surface area 1.9004881522064E+14
Volume 1.0836288214593E+21
Height 9875884.6411878