28666989 (number)

28666989 is an odd 8-digits composite number following 28666988 and preceding 28666990. In scientific notation, it is written as 2.8666989 × 10^7. The sum of its digits is 54. It has a total of 3 prime factors and 8 positive divisors. There are 17436672 positive integers (up to 28666989) that are relatively prime to 28666989.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8666989 × 10^7
Engineering notation 2.8666989 × 10^6

Prime Factorization of 28666989

Prime Factorization 117 × 89 × 2753

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28666989
Product of the distinct prime numbers

The prime factorization of 28666989 is 117 × 89 × 2753. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 6, 97, 18, 884, 888, 9559, 4880, 70832, 79460, 664603, 430133, 1677761, 1439171, 64362064, 4813758, 945406665, 144468841, 5762147527, 9925546109

Basic calculations (n = 28666989)

Multiplication

n×y
n×2 57333978
n×3 86000967
n×4 114667956
n×5 143334945

Division

n÷y
n÷2 14333494.5
n÷3 9555663
n÷3 7166747.25
n÷5 5733397.8

Exponentiation

ny
n2 821796258326121
n3 2.3558424297676E+22
n4 6.7534909019881E+29
n5 1.9360224939889E+37

Nth Root

y√n
2√n 5354.1562360469
3√n 306.05115766501
4√n 73.172100120517
5√n 31.008189962602

Divisors of 28666989

1, 89, 117, 2753, 10413, 245017, 322101, 28666989

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 -28666988
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 28666989 can be divided by 8 positive divisors. The sum of these divisors (counting 28666989) is 1, the average is 0.125.

Base conversion 28666989

Base System Value
2 Binary 1101101010110110001101101
3 Ternary 1222221102201100
4 Quaternary 1231112301231
5 Quinary 24314320424
6 Senary 2502233313
8 Octal 155266155
10 Decimal 28666989
12 Duodecimal 9725839
16 Hexadecimal 1b56c6d
20 Vigesimal 8j3799
36 Base36 h2fl9

Cryptographic Hash Functions

md5 5a1af1a8e090ff071f233911e8e1f2cf
sha1 b8cfe6d400ac5a88d4f021881216f710b8abda22
sha256 61686c098c0e6dcc02579b16ed152901dfdd9b8745667cc36e1b1a601a163719
sha512 76be5ba03c621aebd51585e8f92602283c387d0c68c3f5229746d8f8dcf27d29175147e601021b8a478a2ac6326d11392793184d191d58b5f287fced775d4f9a
ripemd-160 4f742224b4e387bd3c1ffe12835e239359e781be

28666989 as geometric shapes

Circle

Radius = n
Diameter 57333978
Circumference 180120004.08588
Area 2.5817490879049E+15

Sphere

Radius = n
Volume 9.8681296938307E+22
Surface area 1.032699635162E+16
Circumference 180120004.08588

Square

Length = n
Perimeter 114667956
Area 821796258326121
Diagonal 40541244.6362

Cube

Length = n
Surface area 4930777549956726
Volume 2.3558424297676E+22
Space diagonal 49652681.448018

Equilateral Triangle

Length = n
Perimeter 86000967
Area 3.5584821822271E+14
Altitude 24826340.724009

Triangular Pyramid

Length = n
Surface area 3.5584821822271E+14
Volume 2.7763869291594E+21
Height 13513748.212067