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

19991221 (number)

19991221 is an odd 8-digits composite number following 19991220 and preceding 19991222. In scientific notation, it is written as 1.9991221 × 10^7. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 19980000 positive integers (up to 19991221) that are relatively prime to 19991221.

Interesting facts

19991221 has 4 divisors, whose sum is 20002444
The reverse of 19991221 is 12219991
Previous prime number is 2221

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7

Name

Name	nineteen million nine hundred ninety-one thousand two hundred twenty-one

Notation

Scientific notation	1.9991221 × 10^7
Engineering notation	1.9991221 × 10^6

Prime Factorization of 19991221

Prime Factorization 2221 × 9001

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	19991221	Product of the distinct prime numbers

The prime factorization of 19991221 is 2221 × 9001. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 2, 25, 86, 751, 468, 5712, 1824, 2278, 49122, 796368, 795182, 5552334, 1964772, 32717325, 1952481, 304834340, 488408636, 9334193171, 3527293737

Basic calculations (n = 19991221)

Multiplication

n×y

n×2	39982442
n×3	59973663
n×4	79964884
n×5	99956105

Division

n÷y

n÷2	9995610.5
n÷3	6663740.3333333
n÷3	4997805.25
n÷5	3998244.2

Exponentiation

n^y

n²	399648917070841
n³	7.9894698235739E+21
n⁴	1.597192569159E+29
n⁵	3.1929829629615E+36

Nth Root

^y√n

²√n	4471.1543252274
³√n	271.40203939313
⁴√n	66.866690700433
⁵√n	28.851464580772

Divisors of 19991221

1, 2221, 9001, 19991221

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	-19991220	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 19991221 can be divided by 4 positive divisors. The sum of these divisors (counting 19991221) is 1, the average is 0.25.

Base conversion 19991221

Base	System	Value
2	Binary	1001100010000101010110101
3	Ternary	1101121122210121
4	Quaternary	1030100222311
5	Quinary	20104204341
6	Senary	1552251541
8	Octal	114205265
10	Decimal	19991221
12	Duodecimal	6840bb1
16	Hexadecimal	1310ab5
20	Vigesimal	64ii11
36	Base36	bwhbp

Cryptographic Hash Functions

md5	894f24d0bd86258f8caef1aa2342b7d7
sha1	b84adcb24b975143c33bb9201c902682d1b7c772
sha256	6caba006eb1cf989b81e0fbcbd206b1df3bb0b3b874159a1e8b50dde0b0efd6e
sha512	e232cc33767cbec3154167a12f7d609b7b5bbe5ccb18aad3a9967ecc0ff55493624e033b47ac301f5d8fb94cf262f12ab7374dd6345c4ede82ec92789b7ee87e
ripemd-160	0f352ea1af6cf40d94895eb2d366b5edcaf6ede2

19991221 as geometric shapes

Circle

Radius = n

Diameter	39982442
Circumference	125608546.05978
Area	1.2555341018849E+15

Sphere

Radius = n

Volume	3.3466212938423E+22
Surface area	5.0221364075395E+15
Circumference	125608546.05978

Square

Length = n

Perimeter	79964884
Area	399648917070841
Diagonal	28271855.866598

Cube

Length = n

Surface area	2397893502425046
Volume	7.9894698235739E+21
Space diagonal	34625810.477338

Equilateral Triangle

Length = n

Perimeter	59973663
Area	1.7305305738914E+14
Altitude	17312905.238669

Triangular Pyramid

Length = n

Surface area	1.7305305738914E+14
Volume	9.4156804838906E+20
Height	9423951.9555326