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

20121891 (number)

20121891 is an odd 8-digits composite number following 20121890 and preceding 20121892. In scientific notation, it is written as 2.0121891 × 10^7. The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors. There are 13187112 positive integers (up to 20121891) that are relatively prime to 20121891.

Interesting facts

20121891 has 8 divisors, whose sum is 27284160
The reverse of 20121891 is 19812102
Previous prime number is 59

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6

Name

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

Notation

Scientific notation	2.0121891 × 10^7
Engineering notation	2.0121891 × 10^6

Prime Factorization of 20121891

Prime Factorization 3 × 59 × 113683

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20121891	Product of the distinct prime numbers

The prime factorization of 20121891 is 3 × 59 × 113683. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 10, 55, 58, 22, 322, 4648, 8673, 40511, 97256, 758894, 268807, 4478927, 3439534, 5484762, 53547361, 267010198, 664375005, 6512270932, 4633884971

Basic calculations (n = 20121891)

Multiplication

n×y

n×2	40243782
n×3	60365673
n×4	80487564
n×5	100609455

Division

n÷y

n÷2	10060945.5
n÷3	6707297
n÷3	5030472.75
n÷5	4024378.2

Exponentiation

n^y

n²	404890497415881
n³	8.1471624559381E+21
n⁴	1.6393631489768E+29
n⁵	3.2987086593128E+36

Nth Root

^y√n

²√n	4485.7430822552
³√n	271.99208364359
⁴√n	66.975690233511
⁵√n	28.889083118014

Divisors of 20121891

1, 3, 59, 177, 113683, 341049, 6707297, 20121891

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	-20121890	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 20121891 can be divided by 8 positive divisors. The sum of these divisors (counting 20121891) is 1, the average is 0.125.

Base conversion 20121891

Base	System	Value
2	Binary	1001100110000100100100011
3	Ternary	1101212022001020
4	Quaternary	1030300210203
5	Quinary	20122400031
6	Senary	1555140523
8	Octal	114604443
10	Decimal	20121891
12	Duodecimal	68a4743
16	Hexadecimal	1330923
20	Vigesimal	65f4eb
36	Base36	bza5f

Cryptographic Hash Functions

md5	02593765c064d1df3bcc200dcc84b6c2
sha1	005caa3827794c11e366a3562f6a85d8f6e01189
sha256	729393fab3352b49d2bded876fc344f3b59197d56e56797f984eec4fb4710539
sha512	70577d45627da1b2e689eb94e8c6f7f9ac724faaff8f7debe6495b295a227c2d510ad76ad96bbdede94f0573ebaca7bbf6e29a315283762e422e9568d1eb9ead
ripemd-160	d81069a3cd97ec84c1fd20ba209daa8cf79c9f75

20121891 as geometric shapes

Circle

Radius = n

Diameter	40243782
Circumference	126429569.88387
Area	1.27200101219E+15

Sphere

Radius = n

Volume	3.4126754292237E+22
Surface area	5.0880040487602E+15
Circumference	126429569.88387

Square

Length = n

Perimeter	80487564
Area	404890497415881
Diagonal	28456651.152793

Cube

Length = n

Surface area	2429342984495286
Volume	8.1471624559381E+21
Space diagonal	34852137.556363

Equilateral Triangle

Length = n

Perimeter	60365673
Area	1.7532272825654E+14
Altitude	17426068.778181

Triangular Pyramid

Length = n

Surface area	1.7532272825654E+14
Volume	9.6015230333705E+20
Height	9485550.3842644