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

20121861 (number)

20121861 is an odd 8-digits composite number following 20121860 and preceding 20121862. In scientific notation, it is written as 2.0121861 × 10^7. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 13331952 positive integers (up to 20121861) that are relatively prime to 20121861.

Interesting facts

20121861 has 8 divisors, whose sum is 26994400
The reverse of 20121861 is 16812102
Previous prime number is 163

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3

Name

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

Notation

Scientific notation	2.0121861 × 10^7
Engineering notation	2.0121861 × 10^6

Prime Factorization of 20121861

Prime Factorization 3 × 163 × 41149

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20121861	Product of the distinct prime numbers

The prime factorization of 20121861 is 3 × 163 × 41149. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 2, 3, 32, 41, 308, 6728, 4220, 52150, 32918, 813340, 820570, 4052940, 6989751, 6913186, 83764208, 980396246, 93299652, 8937352099, 9217375188

Basic calculations (n = 20121861)

Multiplication

n×y

n×2	40243722
n×3	60365583
n×4	80487444
n×5	100609305

Division

n÷y

n÷2	10060930.5
n÷3	6707287
n÷3	5030465.25
n÷5	4024372.2

Exponentiation

n^y

n²	404889290103321
n³	8.1471260158477E+21
n⁴	1.6393533724037E+29
n⁵	3.2986840689389E+36

Nth Root

^y√n

²√n	4485.7397383263
³√n	271.9919484713
⁴√n	66.975665269755
⁵√n	28.889074503784

Divisors of 20121861

1, 3, 163, 489, 41149, 123447, 6707287, 20121861

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	-20121860	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 20121861 can be divided by 8 positive divisors. The sum of these divisors (counting 20121861) is 1, the average is 0.125.

Base conversion 20121861

Base	System	Value
2	Binary	1001100110000100100000101
3	Ternary	1101212022000010
4	Quaternary	1030300210011
5	Quinary	20122344421
6	Senary	1555140433
8	Octal	114604405
10	Decimal	20121861
12	Duodecimal	68a4719
16	Hexadecimal	1330905
20	Vigesimal	65f4d1
36	Base36	bza4l

Cryptographic Hash Functions

md5	365e9562c57b042a9b993b6eefe5486f
sha1	8a417afdd3ac97c3a5d7c3f3c5d094e5b40f8ca1
sha256	0fbd911bc7951474b147da787ec91b0aab17e8f89c3b7702d5af6c43e62b54ff
sha512	1d853a81937a5496d051bf32f0c890d04ec880aeac29c88c8f77c9074038a6307b2faf7c04386afbba7c6aa097372cef1ace7e5e823c9e06d5ffc87d4045e260
ripemd-160	f0b6ba56052c1ca1f2ac61369547e0e037354743

20121861 as geometric shapes

Circle

Radius = n

Diameter	40243722
Circumference	126429381.38831
Area	1.2719972193058E+15

Sphere

Radius = n

Volume	3.4126601652343E+22
Surface area	5.0879888772231E+15
Circumference	126429381.38831

Square

Length = n

Perimeter	80487444
Area	404889290103321
Diagonal	28456608.726386

Cube

Length = n

Surface area	2429335740619926
Volume	8.1471260158477E+21
Space diagonal	34852085.594839

Equilateral Triangle

Length = n

Perimeter	60365583
Area	1.7532220547486E+14
Altitude	17426042.797419

Triangular Pyramid

Length = n

Surface area	1.7532220547486E+14
Volume	9.6014800883121E+20
Height	9485536.2421288