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

20128749 (number)

20128749 is an odd 8-digits composite number following 20128748 and preceding 20128750. In scientific notation, it is written as 2.0128749 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 12835680 positive integers (up to 20128749) that are relatively prime to 20128749.

Interesting facts

20128749 has 8 divisors, whose sum is 28005312
The reverse of 20128749 is 94782102
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

Name	twenty million one hundred twenty-eight thousand seven hundred forty-nine

Notation

Scientific notation	2.0128749 × 10^7
Engineering notation	2.0128749 × 10^6

Prime Factorization of 20128749

Prime Factorization 3 × 23 × 291721

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20128749	Product of the distinct prime numbers

The prime factorization of 20128749 is 3 × 23 × 291721. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 5, 99, 21, 24, 545, 120, 5621, 49229, 81927, 111740, 4843, 2861210, 1289627, 26692546, 53362134, 874809966, 720525126, 7748308385, 4579414755

Basic calculations (n = 20128749)

Multiplication

n×y

n×2	40257498
n×3	60386247
n×4	80514996
n×5	100643745

Division

n÷y

n÷2	10064374.5
n÷3	6709583
n÷3	5032187.25
n÷5	4025749.8

Exponentiation

n^y

n²	405166536305001
n³	8.1554955124828E+21
n⁴	1.6415992214139E+29
n⁵	3.3043338686436E+36

Nth Root

^y√n

²√n	4486.5074389774
³√n	272.02298050504
⁴√n	66.981396215497
⁵√n	28.891052061468

Divisors of 20128749

1, 3, 23, 69, 291721, 875163, 6709583, 20128749

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	-20128748	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 20128749 can be divided by 8 positive divisors. The sum of these divisors (counting 20128749) is 1, the average is 0.125.

Base conversion 20128749

Base	System	Value
2	Binary	1001100110010001111101101
3	Ternary	1101212122110020
4	Quaternary	1030302033231
5	Quinary	20123104444
6	Senary	1555232353
8	Octal	114621755
10	Decimal	20128749
12	Duodecimal	68a86b9
16	Hexadecimal	13323ed
20	Vigesimal	65g1h9
36	Base36	bzffx

Cryptographic Hash Functions

md5	1e88bd8ca5e3c045995cfd2dc829ab5d
sha1	90ef6779964ce974ca5a672375762535e339bd79
sha256	5d5fc9ebe291ca551b3115d50023181e35a7ee940b6fca76371a2488f7c9b685
sha512	26f6f0ea50ddf13a871433b81e9076a9704738e958b5356d220f56098afb4d04b6031c44ab6014d35743b5d6428698bcd19577e34a4a92c9a595f17af7831b33
ripemd-160	69b96364174f05881cb521a2c7819ce92840cf7c

20128749 as geometric shapes

Circle

Radius = n

Diameter	40257498
Circumference	126472659.96871
Area	1.2728682139362E+15

Sphere

Radius = n

Volume	3.4161659717867E+22
Surface area	5.0914728557449E+15
Circumference	126472659.96871

Square

Length = n

Perimeter	80514996
Area	405166536305001
Diagonal	28466349.829404

Cube

Length = n

Surface area	2430999217830006
Volume	8.1554955124828E+21
Space diagonal	34864015.960801

Equilateral Triangle

Length = n

Perimeter	60386247
Area	1.7544225660174E+14
Altitude	17432007.980401

Triangular Pyramid

Length = n

Surface area	1.7544225660174E+14
Volume	9.6113436346884E+20
Height	9488783.276468