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

20001561 (number)

20001561 is an odd 8-digits composite number following 20001560 and preceding 20001562. In scientific notation, it is written as 2.0001561 × 10^7. The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors. There are 12874512 positive integers (up to 20001561) that are relatively prime to 20001561.

Interesting facts

20001561 has 8 divisors, whose sum is 27588480
The reverse of 20001561 is 16510002
Previous prime number is 29

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6

Name

Name	twenty million one thousand five hundred sixty-one

Notation

Scientific notation	2.0001561 × 10^7
Engineering notation	2.0001561 × 10^6

Prime Factorization of 20001561

Prime Factorization 3 × 29 × 229903

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20001561	Product of the distinct prime numbers

The prime factorization of 20001561 is 3 × 29 × 229903. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 2, 4, 64, 468, 855, 2837, 3350, 38220, 6794, 907665, 160447, 4973627, 3509632, 96319879, 97126255, 516325638, 707815354, 1984942346, 1133549700

Basic calculations (n = 20001561)

Multiplication

n×y

n×2	40003122
n×3	60004683
n×4	80006244
n×5	100007805

Division

n÷y

n÷2	10000780.5
n÷3	6667187
n÷3	5000390.25
n÷5	4000312.2

Exponentiation

n^y

n²	400062442436721
n³	8.0018733462071E+21
n⁴	1.6004995784843E+29
n⁵	3.2012489949529E+36

Nth Root

^y√n

²√n	4472.3104766999
³√n	271.4488234856
⁴√n	66.875335338972
⁵√n	28.854448514994

Divisors of 20001561

1, 3, 29, 87, 229903, 689709, 6667187, 20001561

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	-20001560	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 20001561 can be divided by 8 positive divisors. The sum of these divisors (counting 20001561) is 1, the average is 0.125.

Base conversion 20001561

Base	System	Value
2	Binary	1001100010011001100011001
3	Ternary	1101122011222120
4	Quaternary	1030103030121
5	Quinary	20110022221
6	Senary	1552411453
8	Octal	114231431
10	Decimal	20001561
12	Duodecimal	6846b89
16	Hexadecimal	1313319
20	Vigesimal	6503i1
36	Base36	bwpax

Cryptographic Hash Functions

md5	fa93552b65fb155bd49fb4c9181401d5
sha1	ddef340c6094f3395b870a76ce754c20fca2aba1
sha256	aba8f5a8a7afb756d042840a947b53a8caa11eae41ce6dfc03d70c8e5f136fc5
sha512	9f5f8fbdfd51942083f0b2b681498f8ad53ce178bcc1255b4a662bc52d208cc6366bf25271ddb0d5761952c33a2b02f7c9cb953aaf83cb5cc3de41edcd0fd6b5
ripemd-160	e395b4fc508680e94120b4ae35fc11e6cc01fd33

20001561 as geometric shapes

Circle

Radius = n

Diameter	40003122
Circumference	125673514.19586
Area	1.2568332301364E+15

Sphere

Radius = n

Volume	3.3518168692533E+22
Surface area	5.0273329205456E+15
Circumference	125673514.19586

Square

Length = n

Perimeter	80006244
Area	400062442436721
Diagonal	28286478.834833

Cube

Length = n

Surface area	2400374654620326
Volume	8.0018733462071E+21
Space diagonal	34643719.882688

Equilateral Triangle

Length = n

Perimeter	60004683
Area	1.7323211912512E+14
Altitude	17321859.941344

Triangular Pyramid

Length = n

Surface area	1.7323211912512E+14
Volume	9.4302981754982E+20
Height	9428826.2782776