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

28991091 (number)

28991091 is an odd 8-digits composite number following 28991090 and preceding 28991092. In scientific notation, it is written as 2.8991091 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 18659808 positive integers (up to 28991091) that are relatively prime to 28991091.

Interesting facts

28991091 has 16 divisors, whose sum is 40006400
The reverse of 28991091 is 19019982
Previous prime number is 139

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

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

Notation

Scientific notation	2.8991091 × 10^7
Engineering notation	2.8991091 × 10^6

Prime Factorization of 28991091

Prime Factorization 3 × 37 × 139 × 1879

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	28991091	Product of the distinct prime numbers

The prime factorization of 28991091 is 3 × 37 × 139 × 1879. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 8, 10, 33, 804, 205, 5327, 8977, 58014, 14373, 628187, 45769, 3362281, 3774493, 13369810, 60926905, 505986884, 298102623, 1493793016, 9303315577

Basic calculations (n = 28991091)

Multiplication

n×y

n×2	57982182
n×3	86973273
n×4	115964364
n×5	144955455

Division

n÷y

n÷2	14495545.5
n÷3	9663697
n÷3	7247772.75
n÷5	5798218.2

Exponentiation

n^y

n²	840483357370281
n³	2.4366529497507E+22
n⁴	7.0641227401642E+29
n⁵	2.0479662519527E+37

Nth Root

^y√n

²√n	5384.337563712
³√n	307.20021811576
⁴√n	73.378045515753
⁵√n	31.077989228577

Divisors of 28991091

1, 3, 37, 111, 139, 417, 1879, 5143, 5637, 15429, 69523, 208569, 261181, 783543, 9663697, 28991091

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	-28991090	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 28991091 can be divided by 16 positive divisors. The sum of these divisors (counting 28991091) is 1, the average is 0.0625.

Base conversion 28991091

Base	System	Value
2	Binary	1101110100101111001110011
3	Ternary	2000112220022010
4	Quaternary	1232211321303
5	Quinary	24410203331
6	Senary	2513214003
8	Octal	156457163
10	Decimal	28991091
12	Duodecimal	9861303
16	Hexadecimal	1ba5e73
20	Vigesimal	913heb
36	Base36	h9do3

Cryptographic Hash Functions

md5	8c53db2bab067f7bf45a70c7429d6a1d
sha1	e0ff30e72a7c48b8f7e58a24d3e0b689cc8fd2cd
sha256	d4a60d90d5477d297a07003fcfb79ff3d7eca935eda1803e62c215de7bd1c599
sha512	080463c79459472857434465ca99eddba94825bc7bd4f2c6ee82a5bc2b94490cfc2f6d5cd4a89b4f4f8f2bad41857a3090a143d114961e63baafbff26a413c41
ripemd-160	91ed6f5bb80119393413c44ec83c867f5418e0c1

28991091 as geometric shapes

Circle

Radius = n

Diameter	57982182
Circumference	182156397.01031
Area	2.640456340979E+15

Sphere

Radius = n

Volume	1.020662800838E+23
Surface area	1.0561825363916E+16
Circumference	182156397.01031

Square

Length = n

Perimeter	115964364
Area	840483357370281
Diagonal	40999594.080193

Cube

Length = n

Surface area	5042900144221686
Volume	2.4366529497507E+22
Space diagonal	50214042.578853

Equilateral Triangle

Length = n

Perimeter	86973273
Area	3.6393996947035E+14
Altitude	25107021.289426

Triangular Pyramid

Length = n

Surface area	3.6393996947035E+14
Volume	2.8716230402782E+21
Height	13666531.360064