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

20015981 (number)

20015981 is an odd 8-digits prime number following 20015980 and preceding 20015982. In scientific notation, it is written as 2.0015981 × 10^7. The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors. There are 20015980 positive integers (up to 20015981) that are relatively prime to 20015981.

Interesting facts

20015981 has 2 divisors, whose sum is 20015982
The reverse of 20015981 is 18951002
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

Name	twenty million fifteen thousand nine hundred eighty-one

Notation

Scientific notation	2.0015981 × 10^7
Engineering notation	2.0015981 × 10^6

Prime Factorization of 20015981

Prime Factorization 20015981

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	20015981	Product of the distinct prime numbers

The prime factorization of 20015981 is 20015981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

6, 4, 6, 6, 269, 228, 9605, 3347, 31700, 84392, 998269, 551264, 359420, 4250652, 99365771, 33050652, 947964887, 86367309, 9573743054, 8169591970

Basic calculations (n = 20015981)

Multiplication

n×y

n×2	40031962
n×3	60047943
n×4	80063924
n×5	100079905

Division

n÷y

n÷2	10007990.5
n÷3	6671993.6666667
n÷3	5003995.25
n÷5	4003196.2

Exponentiation

n^y

n²	400639495392361
n³	8.0191925276231E+21
n⁴	1.6051200526825E+29
n⁵	3.2128052477211E+36

Nth Root

^y√n

²√n	4473.9223283379
³√n	271.51404092454
⁴√n	66.887385420106
⁵√n	28.858607802472

Divisors of 20015981

1, 20015981

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	20015982	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10007991	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4473.9224400966	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999000798	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20015981 can be divided by 2 positive divisors. The sum of these divisors (counting 20015981) is 20015982, the average is 10007991.

Base conversion 20015981

Base	System	Value
2	Binary	1001100010110101101101101
3	Ternary	1101122220202122
4	Quaternary	1030112231231
5	Quinary	20111002411
6	Senary	1553002325
8	Octal	114265555
10	Decimal	20015981
12	Duodecimal	68533a5
16	Hexadecimal	1316b6d
20	Vigesimal	651jj1
36	Base36	bx0fh

Cryptographic Hash Functions

md5	f39769df47fab04c30d7a6b0228653ec
sha1	a6a246d62fa1c777e3209e720820800ef0412399
sha256	c638de876be9ebb84efd1cce5be9c567b9a4a9cc8c851d7b0420183b1f0b388c
sha512	89dd518ea2d86d1f69954da3e929b6b95fb11cded2cb7c01f1d321775fd194d051bcd5239add966dfd8a35827be03149879874f69960a0b66a6baba09cc663ed
ripemd-160	e5c924753e54de7540eeb6ac6d116f83db516988

20015981 as geometric shapes

Circle

Radius = n

Diameter	40031962
Circumference	125764117.72799
Area	1.2586460954626E+15

Sphere

Radius = n

Volume	3.3590715110004E+22
Surface area	5.0345843818503E+15
Circumference	125764117.72799

Square

Length = n

Perimeter	80063924
Area	400639495392361
Diagonal	28306871.794402

Cube

Length = n

Surface area	2403836972354166
Volume	8.0191925276231E+21
Space diagonal	34668696.055333

Equilateral Triangle

Length = n

Perimeter	60047943
Area	1.7348199038458E+14
Altitude	17334348.027667

Triangular Pyramid

Length = n

Surface area	1.7348199038458E+14
Volume	9.450709026538E+20
Height	9435623.9314674