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

21978081 (number)

21978081 is an odd 8-digits composite number following 21978080 and preceding 21978082. In scientific notation, it is written as 2.1978081 × 10^7. The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors. There are 14652036 positive integers (up to 21978081) that are relatively prime to 21978081.

Interesting facts

21978081 has 4 divisors, whose sum is 22792112
The reverse of 21978081 is 18087912
Previous prime number is 27

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9

Name

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

Notation

Scientific notation	2.1978081 × 10^7
Engineering notation	2.1978081 × 10^6

Prime Factorization of 21978081

Prime Factorization 27 × 814003

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21978081	Product of the distinct prime numbers

The prime factorization of 21978081 is 27 × 814003. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 10, 60, 98, 386, 611, 5757, 201, 8739, 14628, 861868, 960802, 9105249, 9425972, 24326510, 44294064, 205988851, 636279512, 5228402492, 8401680704

Basic calculations (n = 21978081)

Multiplication

n×y

n×2	43956162
n×3	65934243
n×4	87912324
n×5	109890405

Division

n÷y

n÷2	10989040.5
n÷3	7326027
n÷3	5494520.25
n÷5	4395616.2

Exponentiation

n^y

n²	483036044442561
n³	1.0616205310678E+22
n⁴	2.3332382023072E+29
n⁵	5.1280098202601E+36

Nth Root

^y√n

²√n	4688.0786042898
³√n	280.11084471911
⁴√n	68.469545086044
⁵√n	29.403427209347

Divisors of 21978081

1, 27, 814003, 21978081

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	-21978080	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 21978081 can be divided by 4 positive divisors. The sum of these divisors (counting 21978081) is 1, the average is 0.25.

Base conversion 21978081

Base	System	Value
2	Binary	1010011110101101111100001
3	Ternary	1112100121021000
4	Quaternary	1103311233201
5	Quinary	21111244311
6	Senary	2103022213
8	Octal	123655741
10	Decimal	21978081
12	Duodecimal	743a969
16	Hexadecimal	14f5be1
20	Vigesimal	6h7541
36	Base36	d32e9

Cryptographic Hash Functions

md5	f4497e1e5af395e6cc463459468b394a
sha1	1ffaff793ed0d72beed1cd958533e57227dbe206
sha256	6011c435ed668df3ea49e703233975be8f4e94c7f44c163ac049c63a548802c8
sha512	1340b9031e7db65f560a5cd4598d99789a6a61cb41c4be81dc024e8f9c387bc887ea4c3733cf890c28d286af4685904ca95a2c60c9019301b4bbaf62476830af
ripemd-160	4b7dd16440fa956579999a1b7a9f246e28c62c18

21978081 as geometric shapes

Circle

Radius = n

Diameter	43956162
Circumference	138092355.6192
Area	1.5175024886398E+15

Sphere

Radius = n

Volume	4.446905681737E+22
Surface area	6.0700099545593E+15
Circumference	138092355.6192

Square

Length = n

Perimeter	87912324
Area	483036044442561
Diagonal	31081700.225134

Cube

Length = n

Surface area	2898216266655366
Volume	1.0616205310678E+22
Space diagonal	38067152.944864

Equilateral Triangle

Length = n

Perimeter	65934243
Area	2.091607427154E+14
Altitude	19033576.472432

Triangular Pyramid

Length = n

Surface area	2.091607427154E+14
Volume	1.2511317942749E+21
Height	10360566.741711