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

28756989 (number)

28756989 is an odd 8-digits composite number following 28756988 and preceding 28756990. In scientific notation, it is written as 2.8756989 × 10^7. The sum of its digits is 54. It has a total of 3 prime factors and 8 positive divisors. There are 19024200 positive integers (up to 28756989) that are relatively prime to 28756989.

Interesting facts

28756989 has 8 divisors, whose sum is 32197440
The reverse of 28756989 is 98965782
Previous prime number is 131

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 54
Digital Root 9

Name

Name	twenty-eight million seven hundred fifty-six thousand nine hundred eighty-nine

Notation

Scientific notation	2.8756989 × 10^7
Engineering notation	2.8756989 × 10^6

Prime Factorization of 28756989

Prime Factorization 9 × 131 × 24391

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	28756989	Product of the distinct prime numbers

The prime factorization of 28756989 is 9 × 131 × 24391. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 5, 11, 16, 556, 705, 1796, 9313, 16958, 71735, 195682, 792965, 2321527, 4782060, 28933310, 67591355, 345378566, 237991849, 1891469948, 7524048243

Basic calculations (n = 28756989)

Multiplication

n×y

n×2	57513978
n×3	86270967
n×4	115027956
n×5	143784945

Division

n÷y

n÷2	14378494.5
n÷3	9585663
n÷3	7189247.25
n÷5	5751397.8

Exponentiation

n^y

n²	826964416346121
n³	2.3781006624257E+22
n⁴	6.8387014590268E+29
n⁵	1.9666046263152E+37

Nth Root

^y√n

²√n	5362.5543353891
³√n	306.37110556672
⁴√n	73.229463574364
⁵√n	31.027635597975

Divisors of 28756989

1, 9, 131, 1179, 24391, 219519, 3195221, 28756989

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	-28756988	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 28756989 can be divided by 8 positive divisors. The sum of these divisors (counting 28756989) is 1, the average is 0.125.

Base conversion 28756989

Base	System	Value
2	Binary	1101101101100101111111101
3	Ternary	2000010000011200
4	Quaternary	1231230233331
5	Quinary	24330210424
6	Senary	2504210113
8	Octal	155545775
10	Decimal	28756989
12	Duodecimal	9769939
16	Hexadecimal	1b6cbfd
20	Vigesimal	8jec99
36	Base36	h4d19

Cryptographic Hash Functions

md5	5652192066a29dad7befc14f951d44fe
sha1	3c3da49b911d14f732d036e09a596b514223237a
sha256	8bd6d0c9c8192b8190859cd316375c2328d058f7714e569cb3bd57822de24d79
sha512	c10b8f0546cd00c73c1dd75d5f45ab1ba543520a4490e9137658abd5f45fdfa46b8c578aca55a1f8f4d8f255780b42dfafd618ce5fc47df9ab553d6012c08b7b
ripemd-160	ca9eec406abc20b9479d310ad6397ae76ed92253

28756989 as geometric shapes

Circle

Radius = n

Diameter	57513978
Circumference	180685490.76352
Area	2.5979853351731E+15

Sphere

Radius = n

Volume	9.9613647607647E+22
Surface area	1.0391941340693E+16
Circumference	180685490.76352

Square

Length = n

Perimeter	115027956
Area	826964416346121
Diagonal	40668523.856814

Cube

Length = n

Surface area	4961786498076726
Volume	2.3781006624257E+22
Space diagonal	49808566.020699

Equilateral Triangle

Length = n

Perimeter	86270967
Area	3.5808609629076E+14
Altitude	24904283.01035

Triangular Pyramid

Length = n

Surface area	3.5808609629076E+14
Volume	2.802618507909E+21
Height	13556174.618938