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

28487989 (number)

28487989 is an odd 8-digits composite number following 28487988 and preceding 28487990. In scientific notation, it is written as 2.8487989 × 10^7. The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors. There are 27793120 positive integers (up to 28487989) that are relatively prime to 28487989.

Interesting facts

28487989 has 4 divisors, whose sum is 29182860
The reverse of 28487989 is 98978482
Previous prime number is 41

Basic properties

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

Name

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

Notation

Scientific notation	2.8487989 × 10^7
Engineering notation	2.8487989 × 10^6

Prime Factorization of 28487989

Prime Factorization 41 × 694829

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	28487989	Product of the distinct prime numbers

The prime factorization of 28487989 is 41 × 694829. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 6, 48, 85, 685, 536, 4600, 8051, 44136, 2130, 459053, 546826, 7564547, 793513, 62697274, 32216193, 495669302, 638307588, 704573359, 5784506338

Basic calculations (n = 28487989)

Multiplication

n×y

n×2	56975978
n×3	85463967
n×4	113951956
n×5	142439945

Division

n÷y

n÷2	14243994.5
n÷3	9495996.3333333
n÷3	7121997.25
n÷5	5697597.8

Exponentiation

n^y

n²	811565517264121
n³	2.31198695286E+22
n⁴	6.5863858881218E+29
n⁵	1.8763288873057E+37

Nth Root

^y√n

²√n	5337.4140742498
³√n	305.41282090599
⁴√n	73.057607914917
⁵√n	30.969369134435

Divisors of 28487989

1, 41, 694829, 28487989

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	-28487988	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 28487989 can be divided by 4 positive divisors. The sum of these divisors (counting 28487989) is 1, the average is 0.25.

Base conversion 28487989

Base	System	Value
2	Binary	1101100101011000100110101
3	Ternary	1222121100011201
4	Quaternary	1230223010311
5	Quinary	24243103424
6	Senary	2454332501
8	Octal	154530465
10	Decimal	28487989
12	Duodecimal	965a131
16	Hexadecimal	1b2b135
20	Vigesimal	8i0jj9
36	Base36	gylh1

Cryptographic Hash Functions

md5	19b441a453edcc33ec4b380a1aa30b6d
sha1	575f3520297436486b2748bf423666d30246332c
sha256	2cbcda5de42d5dfc099e8e53fb279cdc9526e7bcc7ccf4c39384f609ed75b64c
sha512	d654854abd81e0b3ceea5cc93a4b7c0e24b20528a705302e66c3cc5e9507ce4b114d627926a93c60e53af27914bf5658a2d82f22ab6a9468445ab123c66073f8
ripemd-160	3769ed30f52632efcfff4c120bf9a92ee93e03f1

28487989 as geometric shapes

Circle

Radius = n

Diameter	56975978
Circumference	178995313.91589
Area	2.5496082669438E+15

Sphere

Radius = n

Volume	9.6844283017337E+22
Surface area	1.0198433067775E+16
Circumference	178995313.91589

Square

Length = n

Perimeter	113951956
Area	811565517264121
Diagonal	40288100.408536

Cube

Length = n

Surface area	4869393103584726
Volume	2.31198695286E+22
Space diagonal	49342644.353463

Equilateral Triangle

Length = n

Perimeter	85463967
Area	3.5141817739309E+14
Altitude	24671322.176732

Triangular Pyramid

Length = n

Surface area	3.5141817739309E+14
Volume	2.7247027539702E+21
Height	13429366.802845