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

28986987 (number)

28986987 is an odd 8-digits composite number following 28986986 and preceding 28986988. In scientific notation, it is written as 2.8986987 × 10^7. The sum of its digits is 57. It has a total of 2 prime factors and 4 positive divisors. There are 19324656 positive integers (up to 28986987) that are relatively prime to 28986987.

Interesting facts

28986987 has 4 divisors, whose sum is 38649320
The reverse of 28986987 is 78968982
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 57
Digital Root 3

Name

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

Notation

Scientific notation	2.8986987 × 10^7
Engineering notation	2.8986987 × 10^6

Prime Factorization of 28986987

Prime Factorization 3 × 9662329

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	28986987	Product of the distinct prime numbers

The prime factorization of 28986987 is 3 × 9662329. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 10, 99, 24, 234, 94, 9764, 2655, 94692, 25201, 750197, 520177, 7459285, 4235605, 81172674, 62985785, 773330098, 576390358, 906870901, 7284584773

Basic calculations (n = 28986987)

Multiplication

n×y

n×2	57973974
n×3	86960961
n×4	115947948
n×5	144934935

Division

n÷y

n÷2	14493493.5
n÷3	9662329
n÷3	7246746.75
n÷5	5797397.4

Exponentiation

n^y

n²	840245415338169
n³	2.4356182931217E+22
n⁴	7.0601235799681E+29
n⁵	2.0465171043093E+37

Nth Root

^y√n

²√n	5383.9564448461
³√n	307.18572160267
⁴√n	73.375448515468
⁵√n	31.077109294183

Divisors of 28986987

1, 3, 9662329, 28986987

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	-28986986	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 28986987 can be divided by 4 positive divisors. The sum of these divisors (counting 28986987) is 1, the average is 0.25.

Base conversion 28986987

Base	System	Value
2	Binary	1101110100100111001101011
3	Ternary	2000112200200010
4	Quaternary	1232210321223
5	Quinary	24410040422
6	Senary	2513143003
8	Octal	156447153
10	Decimal	28986987
12	Duodecimal	985aa63
16	Hexadecimal	1ba4e6b
20	Vigesimal	913797
36	Base36	h9ai3

Cryptographic Hash Functions

md5	e917082218ade12158b39cfcd8f083d9
sha1	36c3ad32bb4b329e974fe802d4ef863ad6c93524
sha256	e8cc94a0e025658d5224013cfd1b734c382b5585c43ac98be2dd75a3e5dd6e27
sha512	a9a4596aa22af1769682e5e988be5c1e1ceb04333a57fc85a190405a2ea3372152b7b258d522f71a53238497b03d5107826264fe9cb6211082eff30db50d93f5
ripemd-160	7def098a478821dc990fa55dd5218ff3f682cbc4

28986987 as geometric shapes

Circle

Radius = n

Diameter	57973974
Circumference	182130610.81781
Area	2.6397088240389E+15

Sphere

Radius = n

Volume	1.0202294048827E+23
Surface area	1.0558835296156E+16
Circumference	182130610.81781

Square

Length = n

Perimeter	115947948
Area	840245415338169
Diagonal	40993790.147733

Cube

Length = n

Surface area	5041472492029014
Volume	2.4356182931217E+22
Space diagonal	50206934.242339

Equilateral Triangle

Length = n

Perimeter	86960961
Area	3.6383693754813E+14
Altitude	25103467.121169

Triangular Pyramid

Length = n

Surface area	3.6383693754813E+14
Volume	2.8704036857473E+21
Height	13664596.715911