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

28490987 (number)

28490987 is an odd 8-digits composite number following 28490986 and preceding 28490988. In scientific notation, it is written as 2.8490987 × 10^7. The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors. There are 24354792 positive integers (up to 28490987) that are relatively prime to 28490987.

Interesting facts

28490987 has 8 divisors, whose sum is 32649216
The reverse of 28490987 is 78909482
Previous prime number is 383

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2

Name

Name	twenty-eight million four hundred ninety thousand nine hundred eighty-seven

Notation

Scientific notation	2.8490987 × 10^7
Engineering notation	2.8490987 × 10^6

Prime Factorization of 28490987

Prime Factorization 7 × 383 × 10627

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	28490987	Product of the distinct prime numbers

The prime factorization of 28490987 is 7 × 383 × 10627. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 1, 11, 23, 257, 831, 9502, 8935, 41632, 66592, 133960, 783332, 3487521, 882979, 74755890, 79374683, 806037127, 584860051, 2541570065, 5093954481

Basic calculations (n = 28490987)

Multiplication

n×y

n×2	56981974
n×3	85472961
n×4	113963948
n×5	142454935

Division

n÷y

n÷2	14245493.5
n÷3	9496995.6666667
n÷3	7122746.75
n÷5	5698197.4

Exponentiation

n^y

n²	811736340234169
n³	2.3127169517039E+22
n⁴	6.5891588605676E+29
n⁵	1.8773163943737E+37

Nth Root

^y√n

²√n	5337.6949144739
³√n	305.42353414049
⁴√n	73.059529936031
⁵√n	30.970020933764

Divisors of 28490987

1, 7, 383, 2681, 10627, 74389, 4070141, 28490987

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	-28490986	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 28490987 can be divided by 8 positive divisors. The sum of these divisors (counting 28490987) is 1, the average is 0.125.

Base conversion 28490987

Base	System	Value
2	Binary	1101100101011110011101011
3	Ternary	1222121111021202
4	Quaternary	1230223303223
5	Quinary	24243202422
6	Senary	2454354415
8	Octal	154536353
10	Decimal	28490987
12	Duodecimal	965ba0b
16	Hexadecimal	1b2bceb
20	Vigesimal	8i1797
36	Base36	gynsb

Cryptographic Hash Functions

md5	f6969fe0d91e3adbae0954dd454d8256
sha1	92b06c389e4ccfb57b8cc4cb766b47053c41f1a9
sha256	ef800f0a34188390c36900ce97104bb852b93efb60e4b4a31e703491c5e8dda0
sha512	0e73042282eb0d2d234e7c5eb394b5bea8692282f8f3362304931e32aff0d1a3ce67a7c06aadd59a773fcbebe5f4e4e65ec2bf2aa0ef30c8d66662b6cb3fc5c9
ripemd-160	d2332b21814703686f30322892bbf0cfcda3625a

28490987 as geometric shapes

Circle

Radius = n

Diameter	56981974
Circumference	179014150.90544
Area	2.5501449231315E+15

Sphere

Radius = n

Volume	9.6874861137409E+22
Surface area	1.0200579692526E+16
Circumference	179014150.90544

Square

Length = n

Perimeter	113963948
Area	811736340234169
Diagonal	40292340.220796

Cube

Length = n

Surface area	4870418041405014
Volume	2.3127169517039E+22
Space diagonal	49347837.041784

Equilateral Triangle

Length = n

Perimeter	85472961
Area	3.514921459089E+14
Altitude	24673918.520892

Triangular Pyramid

Length = n

Surface area	3.514921459089E+14
Volume	2.7255630658582E+21
Height	13430780.073599