19951 (number)

19951 is an odd 5-digits composite number following 19950 and preceding 19952. In scientific notation, it is written as 1.9951 × 10^4. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 19600 positive integers (up to 19951) that are relatively prime to 19951.

Interesting facts

Basic properties

Name

Name nineteen thousand nine hundred fifty-one

Notation

Scientific notation 1.9951 × 10^4
Engineering notation 1.9951 × 10^3

Prime Factorization of 19951

Prime Factorization 281 × 71

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 19951
Product of the distinct prime numbers

The prime factorization of 19951 is 281 × 71. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 3, 67, 91, 630, 7, 9037, 5790, 9128, 86810, 224669, 428744, 1201569, 660752, 24012601, 75161120, 851068822, 81384074, 9733628983, 5294227068

Basic calculations (n = 19951)

Multiplication

n×y
n×2 39902
n×3 59853
n×4 79804
n×5 99755

Division

n÷y
n÷2 9975.5
n÷3 6650.3333333333
n÷3 4987.75
n÷5 3990.2

Exponentiation

ny
n2 398042401
n3 7941343942351
n4 158437752993844801
n5 3.1609916099802E+21

Nth Root

y√n
2√n 141.24800883552
3√n 27.121990293741
4√n 11.88478055479
5√n 7.244241730908

Divisors of 19951

1, 71, 281, 19951

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 -19950
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 19951 can be divided by 4 positive divisors. The sum of these divisors (counting 19951) is 1, the average is 0.25.

Base conversion 19951

Base System Value
2 Binary 100110111101111
3 Ternary 1000100221
4 Quaternary 10313233
5 Quinary 1114301
6 Senary 232211
8 Octal 46757
10 Decimal 19951
12 Duodecimal b667
16 Hexadecimal 4def
20 Vigesimal 29hb
36 Base36 fe7

Cryptographic Hash Functions

md5 4ffa03baed83147366c2e22170fd08a7
sha1 8e44b5c078453aa590239fbe056dfe028c5b4395
sha256 e6f7c9773232c88f0f2ef26b64f13d39e45f214e2bf1dce5c705d670facfda54
sha512 824b5c34781c8fa250342acc428444992f92ebaec097f967e7832123a41b9f66f9a017aef5986bace243b261801ab9c635eb849410156ae1228e9bf67966895e
ripemd-160 07e0d3450c0f21370048b268ffff2e1f783f9d91

19951 as geometric shapes

Circle

Radius = n
Diameter 39902
Circumference 125355.83006354
Area 1250487082.7988

Sphere

Radius = n
Volume 33264623718560
Surface area 5001948331.1954
Circumference 125355.83006354

Square

Length = n
Perimeter 79804
Area 398042401
Diagonal 28214.974782906

Cube

Length = n
Surface area 2388254406
Volume 7941343942351
Space diagonal 34556.145661807

Equilateral Triangle

Length = n
Perimeter 59853
Area 172357415.52468
Altitude 17278.072830903

Triangular Pyramid

Length = n
Surface area 172357415.52468
Volume 935896358895.18
Height 9404.9915943019