20949 (number)

20949 is an odd 5-digits composite number following 20948 and preceding 20950. In scientific notation, it is written as 2.0949 × 10^4. The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors. There are 13964 positive integers (up to 20949) that are relatively prime to 20949.

Interesting facts

Basic properties

Name

Name twenty thousand nine hundred forty-nine

Notation

Scientific notation 2.0949 × 10^4
Engineering notation 2.0949 × 10^3

Prime Factorization of 20949

Prime Factorization 3 × 6983

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20949
Product of the distinct prime numbers

The prime factorization of 20949 is 3 × 6983. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 8, 32, 82, 24, 240, 8623, 4543, 46002, 28813, 43283, 269499, 2218851, 5490626, 89301372, 60449145, 991471829, 200356953, 2812947085, 5994379048

Basic calculations (n = 20949)

Multiplication

n×y
n×2 41898
n×3 62847
n×4 83796
n×5 104745

Division

n÷y
n÷2 10474.5
n÷3 6983
n÷3 5237.25
n÷5 4189.8

Exponentiation

ny
n2 438860601
n3 9193690730349
n4 192598627110081201
n5 4.0347486393291E+21

Nth Root

y√n
2√n 144.7376937774
3√n 27.566889511259
4√n 12.030697975487
5√n 7.3153087275366

Divisors of 20949

1, 3, 6983, 20949

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20948
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20949 can be divided by 4 positive divisors. The sum of these divisors (counting 20949) is 1, the average is 0.25.

Base conversion 20949

Base System Value
2 Binary 101000111010101
3 Ternary 1001201220
4 Quaternary 11013111
5 Quinary 1132244
6 Senary 240553
8 Octal 50725
10 Decimal 20949
12 Duodecimal 10159
16 Hexadecimal 51d5
20 Vigesimal 2c79
36 Base36 g5x

Cryptographic Hash Functions

md5 a555ec5f81ae0b44cb4a94424aa510bf
sha1 89a2db3c0c169f847f02e5146e5cbd0a8c7895e2
sha256 c0adfb595b98d00671db70ea4f9ac6b21cf8313b115d62faf2383196fce90d92
sha512 a8d4c6d5361c56081d9c9a9064ba57620cee04fbe0cf99c9251352d3831309727ac7ca45d622f92609cb02f6636b9c535594c299a3b7312eb95efa2f6510cdd3
ripemd-160 58fdb9535f5f2919555334356afab7266f4cdda6

20949 as geometric shapes

Circle

Radius = n
Diameter 41898
Circumference 131626.44900011
Area 1378721240.0516

Sphere

Radius = n
Volume 38510441677121
Surface area 5514884960.2064
Circumference 131626.44900011

Square

Length = n
Perimeter 83796
Area 438860601
Diagonal 29626.359918154

Cube

Length = n
Surface area 2633163606
Volume 9193690730349
Space diagonal 36284.73236776

Equilateral Triangle

Length = n
Perimeter 62847
Area 190032214.59305
Altitude 18142.36618388

Triangular Pyramid

Length = n
Surface area 190032214.59305
Volume 1083486843260.3
Height 9875.4533060513