Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

20071981 (number)

20071981 is an odd 8-digits composite number following 20071980 and preceding 20071982. In scientific notation, it is written as 2.0071981 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 20054272 positive integers (up to 20071981) that are relatively prime to 20071981.

Interesting facts

20071981 has 4 divisors, whose sum is 20089692
The reverse of 20071981 is 18917002
Previous prime number is 1217

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	twenty million seventy-one thousand nine hundred eighty-one

Notation

Scientific notation	2.0071981 × 10^7
Engineering notation	2.0071981 × 10^6

Prime Factorization of 20071981

Prime Factorization 1217 × 16493

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20071981	Product of the distinct prime numbers

The prime factorization of 20071981 is 1217 × 16493. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 1, 64, 56, 142, 760, 8570, 9746, 91862, 74590, 196881, 804212, 9085014, 8406186, 92731126, 60998344, 998516907, 707180875, 7221251360, 7486399313

Basic calculations (n = 20071981)

Multiplication

n×y

n×2	40143962
n×3	60215943
n×4	80287924
n×5	100359905

Division

n÷y

n÷2	10035990.5
n÷3	6690660.3333333
n÷3	5017995.25
n÷5	4014396.2

Exponentiation

n^y

n²	402884421264361
n³	8.0866884488142E+21
n⁴	1.6231585689752E+29
n⁵	3.2580007956457E+36

Nth Root

^y√n

²√n	4480.1764474181
³√n	271.76701592632
⁴√n	66.934120203511
⁵√n	28.874737678896

Divisors of 20071981

1, 1217, 16493, 20071981

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	-20071980	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 20071981 can be divided by 4 positive divisors. The sum of these divisors (counting 20071981) is 1, the average is 0.25.

Base conversion 20071981

Base	System	Value
2	Binary	1001100100100011000101101
3	Ternary	1101202202120201
4	Quaternary	1030210120231
5	Quinary	20114300411
6	Senary	1554113501
8	Octal	114443055
10	Decimal	20071981
12	Duodecimal	687b891
16	Hexadecimal	132462d
20	Vigesimal	658jj1
36	Base36	by7n1

Cryptographic Hash Functions

md5	1f8a1a7a9418f024bc8177dab2499069
sha1	ae69eeac9007d03399aeffed5c940e65a6b8d767
sha256	9369e657e8e9cc2fe228578cd85a9128cf16765a1bfdff12890bb493b5f04ebd
sha512	38066a5fe1a683b6ac4c906eb9996a4db3d0d6804160214161a8bc7c9993524b2d8fcb8ae8245622e0d88482ba8c3f7f08c26fdd9832f141879b38b18e0139e0
ripemd-160	28f3a2ea706f3946fc0f61549b54bbe477179a95

20071981 as geometric shapes

Circle

Radius = n

Diameter	40143962
Circumference	126115976.10519
Area	1.2656987380899E+15

Sphere

Radius = n

Volume	3.3873441363552E+22
Surface area	5.0627949523596E+15
Circumference	126115976.10519

Square

Length = n

Perimeter	80287924
Area	402884421264361
Diagonal	28386067.753895

Cube

Length = n

Surface area	2417306527586166
Volume	8.0866884488142E+21
Space diagonal	34765690.900557

Equilateral Triangle

Length = n

Perimeter	60215943
Area	1.7445407180196E+14
Altitude	17382845.450279

Triangular Pyramid

Length = n

Surface area	1.7445407180196E+14
Volume	9.5302537324991E+20
Height	9462022.5846317