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

21081907 (number)

21081907 is an odd 8-digits composite number following 21081906 and preceding 21081908. In scientific notation, it is written as 2.1081907 × 10^7. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 16427040 positive integers (up to 21081907) that are relatively prime to 21081907.

Interesting facts

21081907 has 8 divisors, whose sum is 23468400
The reverse of 21081907 is 70918012
Previous prime number is 11

Basic properties

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

Name

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

Notation

Scientific notation	2.1081907 × 10^7
Engineering notation	2.1081907 × 10^6

Prime Factorization of 21081907

Prime Factorization 49 × 11 × 39113

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21081907	Product of the distinct prime numbers

The prime factorization of 21081907 is 49 × 11 × 39113. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 4, 71, 96, 117, 813, 1488, 4104, 39107, 5809, 388974, 626767, 7859926, 8685267, 83568496, 80458699, 721312667, 836877863, 2252722180, 8738106925

Basic calculations (n = 21081907)

Multiplication

n×y

n×2	42163814
n×3	63245721
n×4	84327628
n×5	105409535

Division

n÷y

n÷2	10540953.5
n÷3	7027302.3333333
n÷3	5270476.75
n÷5	4216381.4

Exponentiation

n^y

n²	444446802756649
n³	9.369786162163E+21
n⁴	1.9753296048061E+29
n⁵	4.1643715022868E+36

Nth Root

^y√n

²√n	4591.5037841648
³√n	276.25064310573
⁴√n	67.760635948645
⁵√n	29.159627960076

Divisors of 21081907

1, 11, 49, 539, 39113, 430243, 1916537, 21081907

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21081906	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21081907 can be divided by 8 positive divisors. The sum of these divisors (counting 21081907) is 1, the average is 0.125.

Base conversion 21081907

Base	System	Value
2	Binary	1010000011010111100110011
3	Ternary	1110200001221101
4	Quaternary	1100122330303
5	Quinary	20344110112
6	Senary	2031505231
8	Octal	120327463
10	Decimal	21081907
12	Duodecimal	7088217
16	Hexadecimal	141af33
20	Vigesimal	6bf4f7
36	Base36	cjuwj

Cryptographic Hash Functions

md5	75fcebb128616df5efeba02cf62da284
sha1	3ccc7cb5b080d99dc9ee8e1de48de40b9003603a
sha256	223814b9090af3f205c1f452270ffcedee5c4494a2f295ea46afefbaa9714ba8
sha512	7959412c486f6cc0bcbdcce515e79048b45fd1cea43a39c935723a142c2faa9b640acfc1aa485569466631beb0cc35f814215d7e36f18b233460eb830c593ca9
ripemd-160	6c70e33d27de57fdb74b42e4f16f1fe5e439c9ff

21081907 as geometric shapes

Circle

Radius = n

Diameter	42163814
Circumference	132461528.30973
Area	1.3962708104518E+15

Sphere

Radius = n

Volume	3.9248068497012E+22
Surface area	5.585083241807E+15
Circumference	132461528.30973

Square

Length = n

Perimeter	84327628
Area	444446802756649
Diagonal	29814318.800088

Cube

Length = n

Surface area	2666680816539894
Volume	9.369786162163E+21
Space diagonal	36514934.044442

Equilateral Triangle

Length = n

Perimeter	63245721
Area	1.9245111090901E+14
Altitude	18257467.022221

Triangular Pyramid

Length = n

Surface area	1.9245111090901E+14
Volume	1.1042398889222E+21
Height	9938106.2666961