28991937 (number)

28991937 is an odd 8-digits composite number following 28991936 and preceding 28991938. In scientific notation, it is written as 2.8991937 × 10^7. The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors. There are 17064960 positive integers (up to 28991937) that are relatively prime to 28991937.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred ninety-one thousand nine hundred thirty-seven

Notation

Scientific notation 2.8991937 × 10^7
Engineering notation 2.8991937 × 10^6

Prime Factorization of 28991937

Prime Factorization 3 × 23 × 13 × 32321

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28991937
Product of the distinct prime numbers

The prime factorization of 28991937 is 3 × 23 × 13 × 32321. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 2, 84, 59, 813, 367, 1940, 2437, 91804, 86902, 35144, 838861, 696531, 266187, 30629303, 74564544, 212766875, 541827952, 7232143295, 5214874496

Basic calculations (n = 28991937)

Multiplication

n×y
n×2 57983874
n×3 86975811
n×4 115967748
n×5 144959685

Division

n÷y
n÷2 14495968.5
n÷3 9663979
n÷3 7247984.25
n÷5 5798387.4

Exponentiation

ny
n2 840532411011969
n3 2.4368662706517E+22
n4 7.0649473396159E+29
n5 2.0482650817846E+37

Nth Root

y√n
2√n 5384.4161243351
3√n 307.20320626197
4√n 73.378580828026
5√n 31.078170606173

Divisors of 28991937

1, 3, 13, 23, 39, 69, 299, 897, 32321, 96963, 420173, 743383, 1260519, 2230149, 9663979, 28991937

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28991936
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28991937 can be divided by 16 positive divisors. The sum of these divisors (counting 28991937) is 1, the average is 0.0625.

Base conversion 28991937

Base System Value
2 Binary 1101110100110000111000001
3 Ternary 2000112221110110
4 Quaternary 1232212013001
5 Quinary 24410220222
6 Senary 2513221533
8 Octal 156460701
10 Decimal 28991937
12 Duodecimal 98618a9
16 Hexadecimal 1ba61c1
20 Vigesimal 913jgh
36 Base36 h9ebl

Cryptographic Hash Functions

md5 c8a6a0ceb16f1a87cb242576c95d55c7
sha1 153638cf93ec3e304d3fcd2855c9d4d8a30c193a
sha256 cb7c1554ce55cf27ea8b64b8bf87303a2493c6fa6a0b9e864be30ce10badf93c
sha512 89821d85f86e1090e2a404e1b3eeddf6296acd6b67f40bc36a0f6ba5dea1a7add5a9c1e2babe0079373f89507d9a08cbce03a593641e21caf55e9c64817bc3bf
ripemd-160 5c500b4fbf6de90f5f53cc0a1e8d65dab5fc5b72

28991937 as geometric shapes

Circle

Radius = n
Diameter 57983874
Circumference 182161712.58508
Area 2.6406104475393E+15

Sphere

Radius = n
Volume 1.020752156488E+23
Surface area 1.0562441790157E+16
Circumference 182161712.58508

Square

Length = n
Perimeter 115967748
Area 840532411011969
Diagonal 41000790.504866

Cube

Length = n
Surface area 5043194466071814
Volume 2.4368662706517E+22
Space diagonal 50215507.893836

Equilateral Triangle

Length = n
Perimeter 86975811
Area 3.6396121032027E+14
Altitude 25107753.946918

Triangular Pyramid

Length = n
Surface area 3.6396121032027E+14
Volume 2.871874441371E+21
Height 13666930.168289