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

28668889 (number)

28668889 is an odd 8-digits composite number following 28668888 and preceding 28668890. In scientific notation, it is written as 2.8668889 × 10^7. The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors. There are 28462500 positive integers (up to 28668889) that are relatively prime to 28668889.

Interesting facts

28668889 has 4 divisors, whose sum is 28875280
The reverse of 28668889 is 98886682
Previous prime number is 139

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 55
Digital Root 1

Name

Name	twenty-eight million six hundred sixty-eight thousand eight hundred eighty-nine

Notation

Scientific notation	2.8668889 × 10^7
Engineering notation	2.8668889 × 10^6

Prime Factorization of 28668889

Prime Factorization 139 × 206251

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	28668889	Product of the distinct prime numbers

The prime factorization of 28668889 is 139 × 206251. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 1, 70, 86, 664, 806, 9686, 8437, 57880, 95787, 256701, 242181, 551176, 9428820, 48718639, 47905801, 871988637, 98983811, 1700935542, 6678533406

Basic calculations (n = 28668889)

Multiplication

n×y

n×2	57337778
n×3	86006667
n×4	114675556
n×5	143344445

Division

n÷y

n÷2	14334444.5
n÷3	9556296.3333333
n÷3	7167222.25
n÷5	5733777.8

Exponentiation

n^y

n²	821905196494321
n³	2.3563108846819E+22
n⁴	6.7552815202437E+29
n⁵	1.9366641606762E+37

Nth Root

^y√n

²√n	5354.3336653593
³√n	306.05791903495
⁴√n	73.173312521433
⁵√n	31.008600985881

Divisors of 28668889

1, 139, 206251, 28668889

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	-28668888	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 28668889 can be divided by 4 positive divisors. The sum of these divisors (counting 28668889) is 1, the average is 0.25.

Base conversion 28668889

Base	System	Value
2	Binary	1101101010111001111011001
3	Ternary	1222221112022201
4	Quaternary	1231113033121
5	Quinary	24314401024
6	Senary	2502250201
8	Octal	155271731
10	Decimal	28668889
12	Duodecimal	9726961
16	Hexadecimal	1b573d9
20	Vigesimal	8j3c49
36	Base36	h2h21

Cryptographic Hash Functions

md5	9bdc62911b7ad0cc40695b01277f063c
sha1	8008ee6f558b5acbad381711773eb14f8fe26451
sha256	e2bade6a1ff45f9e2be22e37ee2ac5e3c2f51620143776bc3c4c90140b2ade37
sha512	301bced62acd97df9ded947861ac8cc118fbc4af0126502a5f5a81b663c8b1e3263604ebf8bc71278cb5d769b41c356b48b0afed08673e099f198ac142dc56f6
ripemd-160	50dbd05144b7a7f50b85d910c3e121221a00bb32

28668889 as geometric shapes

Circle

Radius = n

Diameter	57337778
Circumference	180131942.13796
Area	2.5820913272538E+15

Sphere

Radius = n

Volume	9.870091953187E+22
Surface area	1.0328365309015E+16
Circumference	180131942.13796

Square

Length = n

Perimeter	114675556
Area	821905196494321
Diagonal	40543931.641969

Cube

Length = n

Surface area	4931431178965926
Volume	2.3563108846819E+22
Space diagonal	49655972.344553

Equilateral Triangle

Length = n

Perimeter	86006667
Area	3.5589538983326E+14
Altitude	24827986.172276

Triangular Pyramid

Length = n

Surface area	3.5589538983326E+14
Volume	2.7769390085704E+21
Height	13514643.880656