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

28006921 (number)

28006921 is an odd 8-digits composite number following 28006920 and preceding 28006922. In scientific notation, it is written as 2.8006921 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 27965700 positive integers (up to 28006921) that are relatively prime to 28006921.

Interesting facts

28006921 has 4 divisors, whose sum is 28048144
The reverse of 28006921 is 12960082
Previous prime number is 691

Basic properties

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

Name

Name	twenty-eight million six thousand nine hundred twenty-one

Notation

Scientific notation	2.8006921 × 10^7
Engineering notation	2.8006921 × 10^6

Prime Factorization of 28006921

Prime Factorization 691 × 40531

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	28006921	Product of the distinct prime numbers

The prime factorization of 28006921 is 691 × 40531. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 7, 68, 36, 367, 16, 3088, 1407, 74261, 43155, 452962, 352250, 2823087, 803279, 66963733, 51710300, 102497979, 975059297, 2483020585, 1939692755

Basic calculations (n = 28006921)

Multiplication

n×y

n×2	56013842
n×3	84020763
n×4	112027684
n×5	140034605

Division

n÷y

n÷2	14003460.5
n÷3	9335640.3333333
n÷3	7001730.25
n÷5	5601384.2

Exponentiation

n^y

n²	784387623900241
n³	2.1968282215952E+22
n⁴	6.1526394452787E+29
n⁵	1.723164868854E+37

Nth Root

^y√n

²√n	5292.1565547516
³√n	303.68391445057
⁴√n	72.747209944791
⁵√n	30.864061328992

Divisors of 28006921

1, 691, 40531, 28006921

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	-28006920	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 28006921 can be divided by 4 positive divisors. The sum of these divisors (counting 28006921) is 1, the average is 0.25.

Base conversion 28006921

Base	System	Value
2	Binary	1101010110101101000001001
3	Ternary	1221200220021101
4	Quaternary	1222311220021
5	Quinary	24132210141
6	Senary	2440141401
8	Octal	152655011
10	Decimal	28006921
12	Duodecimal	9467861
16	Hexadecimal	1ab5a09
20	Vigesimal	8f0h61
36	Base36	goaa1

Cryptographic Hash Functions

md5	ab3b7f4abc6b0e601e61008173febea9
sha1	00ea1ac3f361ea0012f3edfc8102d38421d1cc41
sha256	f47aa9436adcb229db7841c850745c7fac4c21d9a82233973f7511e3c35d6ffd
sha512	09730b11f734ee3e2ca7152700038368f9e85efa125940b8b9a1d2fc5212454eccb8266762398666f1746fd998f12d2fc467e62d8eb9495a69c9d9974759c302
ripemd-160	ee45fe4a710a4c52fe2d225f808571406f38f283

28006921 as geometric shapes

Circle

Radius = n

Diameter	56013842
Circumference	175972674.52654
Area	2.4642263968118E+15

Sphere

Radius = n

Volume	9.2020525362162E+22
Surface area	9.856905587247E+15
Circumference	175972674.52654

Square

Length = n

Perimeter	112027684
Area	784387623900241
Diagonal	39607767.518512

Cube

Length = n

Surface area	4706325743401446
Volume	2.1968282215952E+22
Space diagonal	48509410.135568

Equilateral Triangle

Length = n

Perimeter	84020763
Area	3.3964980435586E+14
Altitude	24254705.067784

Triangular Pyramid

Length = n

Surface area	3.3964980435586E+14
Volume	2.5889868876532E+21
Height	13202589.172837