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

20507981 (number)

20507981 is an odd 8-digits composite number following 20507980 and preceding 20507982. In scientific notation, it is written as 2.0507981 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 6 positive divisors. There are 18930288 positive integers (up to 20507981) that are relatively prime to 20507981.

Interesting facts

20507981 has 6 divisors, whose sum is 22207050
The reverse of 20507981 is 18970502
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	twenty million five hundred seven thousand nine hundred eighty-one

Notation

Scientific notation	2.0507981 × 10^7
Engineering notation	2.0507981 × 10^6

Prime Factorization of 20507981

Prime Factorization 13 × 13 × 121349

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	1577537	Product of the distinct prime numbers

The prime factorization of 20507981 is 13 × 13 × 121349. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 3, 5, 91, 115, 366, 3763, 5008, 54945, 54197, 59787, 409449, 3101845, 9366149, 27450787, 87588399, 960461969, 74589229, 1168813073, 1260536109

Basic calculations (n = 20507981)

Multiplication

n×y

n×2	41015962
n×3	61523943
n×4	82031924
n×5	102539905

Division

n÷y

n÷2	10253990.5
n÷3	6835993.6666667
n÷3	5126995.25
n÷5	4101596.2

Exponentiation

n^y

n²	420577284696361
n³	8.6251909635846E+21
n⁴	1.7688525240256E+29
n⁵	3.627559395452E+36

Nth Root

^y√n

²√n	4528.5738373135
³√n	273.72069590339
⁴√n	67.294679115911
⁵√n	28.999104119652

Divisors of 20507981

1, 13, 169, 121349, 1577537, 20507981

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20507980	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20507981 can be divided by 6 positive divisors. The sum of these divisors (counting 20507981) is 1, the average is 0.16666666666667.

Base conversion 20507981

Base	System	Value
2	Binary	1001110001110110101001101
3	Ternary	1102120220122212
4	Quaternary	1032032311031
5	Quinary	20222223411
6	Senary	2011320205
8	Octal	116166515
10	Decimal	20507981
12	Duodecimal	6a50065
16	Hexadecimal	138ed4d
20	Vigesimal	6839j1
36	Base36	c7k25

Cryptographic Hash Functions

md5	36b2766c6f086c1589442870e0dff8ed
sha1	d4942b4a15c609ea92be8f8ca4755e8518c6a403
sha256	b66f00f046bebf464236a8d7714bdcfcf2b31e9f2e1e2eb0707aef33a7f0ca40
sha512	00465252f7b7a6f6df6670e9f7a9682500413a159fc6f64b9a869ab591bfaea53ac448b055c11223fa2b7f0dcc14a0cc17ab1c1ebc6452f39a4c2de346952134
ripemd-160	d66f7ebde248718331c24b2c560c8d7f9ad8eb35

20507981 as geometric shapes

Circle

Radius = n

Diameter	41015962
Circumference	128855444.89912
Area	1.3212825078688E+15

Sphere

Radius = n

Volume	3.6129115422675E+22
Surface area	5.2851300314753E+15
Circumference	128855444.89912

Square

Length = n

Perimeter	82031924
Area	420577284696361
Diagonal	29002664.86709

Cube

Length = n

Surface area	2523463708178166
Volume	8.6251909635846E+21
Space diagonal	35520865.052657

Equilateral Triangle

Length = n

Perimeter	61523943
Area	1.8211530640086E+14
Altitude	17760432.526329

Triangular Pyramid

Length = n

Surface area	1.8211530640086E+14
Volume	1.0164885032299E+21
Height	9667554.9556966