19961 (number)

19961 is an odd 5-digits prime number following 19960 and preceding 19962. In scientific notation, it is written as 1.9961 × 10^4. The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors. There are 19960 positive integers (up to 19961) that are relatively prime to 19961.

Interesting facts

Basic properties

Name

Name nineteen thousand nine hundred sixty-one

Notation

Scientific notation 1.9961 × 10^4
Engineering notation 1.9961 × 10^3

Prime Factorization of 19961

Prime Factorization 19961

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 19961
Product of the distinct prime numbers

The prime factorization of 19961 is 19961. Since it has a total of 1 prime factors.

Most popular turbo-numbers

1, 8, 26, 75, 353, 938, 1424, 3777, 94614, 44049, 23089, 918039, 8895736, 557375, 11964726, 88769018, 463107630, 289869075, 6598312321, 140810865

Basic calculations (n = 19961)

Multiplication

n×y
n×2 39922
n×3 59883
n×4 79844
n×5 99805

Division

n÷y
n÷2 9980.5
n÷3 6653.6666666667
n÷3 4990.25
n÷5 3992.2

Exponentiation

ny
n2 398441521
n3 7953291200681
n4 158755645656793441
n5 3.1689214429553E+21

Nth Root

y√n
2√n 141.28340313002
3√n 27.126520970586
4√n 11.886269521175
5√n 7.2449677887258

Divisors of 19961

1, 19961

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 19962
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 9981
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 141.2869420718
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9998998096383
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 19961 can be divided by 2 positive divisors. The sum of these divisors (counting 19961) is 19962, the average is 9981.

Base conversion 19961

Base System Value
2 Binary 100110111111001
3 Ternary 1000101022
4 Quaternary 10313321
5 Quinary 1114321
6 Senary 232225
8 Octal 46771
10 Decimal 19961
12 Duodecimal b675
16 Hexadecimal 4df9
20 Vigesimal 29i1
36 Base36 feh

Cryptographic Hash Functions

md5 b6e58b6a4b94a551296232a9d703c358
sha1 f4d46d1f580859adc6cea875938173b2fca54c43
sha256 7c61da36fc5b96698f4790244ae9207cfc7df6249bce1ca37d6d4aa022304f91
sha512 96e7ab2ec4414fb4a0aaf4e0046d63cec4ad7b89f7e8d31861038d6cf2028cd5d6bbc298009415512a3b441a95f3fa8b2c616865b1917c8b67d45c1d5bd3703a
ripemd-160 f1878e91f996b47bfe4c3e8112b77d84e1eb5834

19961 as geometric shapes

Circle

Radius = n
Diameter 39922
Circumference 125418.66191661
Area 1251740955.2587

Sphere

Radius = n
Volume 33314668277226
Surface area 5006963821.035
Circumference 125418.66191661

Square

Length = n
Perimeter 79844
Area 398441521
Diagonal 28229.116918529

Cube

Length = n
Surface area 2390649126
Volume 7953291200681
Space diagonal 34573.466169882

Equilateral Triangle

Length = n
Perimeter 59883
Area 172530239.55426
Altitude 17286.733084941

Triangular Pyramid

Length = n
Surface area 172530239.55426
Volume 937304356792.14
Height 9409.7056395098