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

20121887 (number)

20121887 is an odd 8-digits composite number following 20121886 and preceding 20121888. In scientific notation, it is written as 2.0121887 × 10^7. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 19791960 positive integers (up to 20121887) that are relatively prime to 20121887.

Interesting facts

20121887 has 4 divisors, whose sum is 20451816
The reverse of 20121887 is 78812102
Previous prime number is 61

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

Name	twenty million one hundred twenty-one thousand eight hundred eighty-seven

Notation

Scientific notation	2.0121887 × 10^7
Engineering notation	2.0121887 × 10^6

Prime Factorization of 20121887

Prime Factorization 61 × 329867

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20121887	Product of the distinct prime numbers

The prime factorization of 20121887 is 61 × 329867. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 1, 75, 67, 846, 263, 9506, 6264, 39544, 57266, 554295, 282473, 2552488, 3224251, 2586929, 428620, 119772223, 294566021, 9099753426, 5580587655

Basic calculations (n = 20121887)

Multiplication

n×y

n×2	40243774
n×3	60365661
n×4	80487548
n×5	100609435

Division

n÷y

n÷2	10060943.5
n÷3	6707295.6666667
n÷3	5030471.75
n÷5	4024377.4

Exponentiation

n^y

n²	404890336440769
n³	8.1471575972531E+21
n⁴	1.6393618454312E+29
n⁵	3.2987053805878E+36

Nth Root

^y√n

²√n	4485.7426363981
³√n	271.99206562063
⁴√n	66.975686905011
⁵√n	28.889081969451

Divisors of 20121887

1, 61, 329867, 20121887

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	-20121886	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 20121887 can be divided by 4 positive divisors. The sum of these divisors (counting 20121887) is 1, the average is 0.25.

Base conversion 20121887

Base	System	Value
2	Binary	1001100110000100100011111
3	Ternary	1101212022001002
4	Quaternary	1030300210133
5	Quinary	20122400022
6	Senary	1555140515
8	Octal	114604437
10	Decimal	20121887
12	Duodecimal	68a473b
16	Hexadecimal	133091f
20	Vigesimal	65f4e7
36	Base36	bza5b

Cryptographic Hash Functions

md5	76510a2073ed8dca02bf0b4870d9615b
sha1	964f3f3acf9bcdf2791a16e21c573c12f9430d0c
sha256	cbab0caf217b8fcfa465ac4158f0e0b9d0cba37f29004d3d22e70b43e2244e96
sha512	2730a3affb01f527909f59e635eb96bd72a36d70055187c4931f88ff9b7f5f80b8a30761e19ec4da2018806e246c2c297e48fc3190367c432ff0c5bac8dd6c11
ripemd-160	4be58c06b37f55c9a362116eb8a072ab591b3092

20121887 as geometric shapes

Circle

Radius = n

Diameter	40243774
Circumference	126429544.75113
Area	1.2720005064718E+15

Sphere

Radius = n

Volume	3.4126733940225E+22
Surface area	5.0880020258873E+15
Circumference	126429544.75113

Square

Length = n

Perimeter	80487548
Area	404890336440769
Diagonal	28456645.495939

Cube

Length = n

Surface area	2429342018644614
Volume	8.1471575972531E+21
Space diagonal	34852130.62816

Equilateral Triangle

Length = n

Perimeter	60365661
Area	1.7532265855227E+14
Altitude	17426065.31408

Triangular Pyramid

Length = n

Surface area	1.7532265855227E+14
Volume	9.6015173073553E+20
Height	9485548.4986463