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

20181621 (number)

20181621 is an odd 8-digits composite number following 20181620 and preceding 20181622. In scientific notation, it is written as 2.0181621 × 10^7. The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors. There are 13454412 positive integers (up to 20181621) that are relatively prime to 20181621.

Interesting facts

20181621 has 4 divisors, whose sum is 26908832
The reverse of 20181621 is 12618102
Previous prime number is 3

Basic properties

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

Name

Name	twenty million one hundred eighty-one thousand six hundred twenty-one

Notation

Scientific notation	2.0181621 × 10^7
Engineering notation	2.0181621 × 10^6

Prime Factorization of 20181621

Prime Factorization 3 × 6727207

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20181621	Product of the distinct prime numbers

The prime factorization of 20181621 is 3 × 6727207. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 1, 47, 76, 824, 504, 8606, 1194, 92077, 35079, 319476, 445910, 5484388, 4614631, 9989747, 43069651, 414040237, 603192786, 5359406731, 2670601265

Basic calculations (n = 20181621)

Multiplication

n×y

n×2	40363242
n×3	60544863
n×4	80726484
n×5	100908105

Division

n÷y

n÷2	10090810.5
n÷3	6727207
n÷3	5045405.25
n÷5	4036324.2

Exponentiation

n^y

n²	407297826187641
n³	8.2199303622428E+21
n⁴	1.6589151921718E+29
n⁵	3.3479597679553E+36

Nth Root

^y√n

²√n	4492.3959086438
³√n	272.26094569378
⁴√n	67.02533781074
⁵√n	28.906213712022

Divisors of 20181621

1, 3, 6727207, 20181621

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20181620	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20181621 can be divided by 4 positive divisors. The sum of these divisors (counting 20181621) is 1, the average is 0.25.

Base conversion 20181621

Base	System	Value
2	Binary	1001100111111001001110101
3	Ternary	1101222022222110
4	Quaternary	1030333021311
5	Quinary	20131302441
6	Senary	2000321233
8	Octal	114771165
10	Decimal	20181621
12	Duodecimal	6913219
16	Hexadecimal	133f275
20	Vigesimal	662e11
36	Base36	c0k8l

Cryptographic Hash Functions

md5	7f4d2d35888a2b8dabee289b4d41dde8
sha1	96f2de62f6363e681a875d2432b2fe2ef2fbb90c
sha256	5d9c61551807233a53692de450f840f1a1d098284fd24e909128e43c6aba2393
sha512	5b0eec80956e42bfdbdedb923921545e7a67c5651c6860e672533d4470495d7042104c73c6b59eda2116f09857fbc05665300b2fea242ac396ad748e3146aa32
ripemd-160	93b0989e98cfc50267660f694a50ee1fdbc5b1d3

20181621 as geometric shapes

Circle

Radius = n

Diameter	40363242
Circumference	126804864.54227
Area	1.2795638585742E+15

Sphere

Radius = n

Volume	3.4431563785389E+22
Surface area	5.1182554342967E+15
Circumference	126804864.54227

Square

Length = n

Perimeter	80726484
Area	407297826187641
Diagonal	28541122.128874

Cube

Length = n

Surface area	2443786957125846
Volume	8.2199303622428E+21
Space diagonal	34955592.951099

Equilateral Triangle

Length = n

Perimeter	60544863
Area	1.7636513219234E+14
Altitude	17477796.47555

Triangular Pyramid

Length = n

Surface area	1.7636513219234E+14
Volume	9.6872808333719E+20
Height	9513707.3762912