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

20121487 (number)

20121487 is an odd 8-digits composite number following 20121486 and preceding 20121488. In scientific notation, it is written as 2.0121487 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 20020176 positive integers (up to 20121487) that are relatively prime to 20121487.

Interesting facts

20121487 has 4 divisors, whose sum is 20222800
The reverse of 20121487 is 78412102
Previous prime number is 199

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7

Name

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

Notation

Scientific notation	2.0121487 × 10^7
Engineering notation	2.0121487 × 10^6

Prime Factorization of 20121487

Prime Factorization 199 × 101113

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20121487	Product of the distinct prime numbers

The prime factorization of 20121487 is 199 × 101113. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 4, 38, 57, 960, 916, 6486, 7465, 41931, 23577, 899030, 332638, 9117138, 48671, 72784910, 1773052, 265456665, 492968392, 185078316, 4952955317

Basic calculations (n = 20121487)

Multiplication

n×y

n×2	40242974
n×3	60364461
n×4	80485948
n×5	100607435

Division

n÷y

n÷2	10060743.5
n÷3	6707162.3333333
n÷3	5030371.75
n÷5	4024297.4

Exponentiation

n^y

n²	404874239091169
n³	8.1466717385078E+21
n⁴	1.6392314947965E+29
n⁵	3.2983775212539E+36

Nth Root

^y√n

²√n	4485.6980504711
³√n	271.99026331207
⁴√n	66.9753540526
⁵√n	28.888967112184

Divisors of 20121487

1, 199, 101113, 20121487

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	-20121486	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 20121487 can be divided by 4 positive divisors. The sum of these divisors (counting 20121487) is 1, the average is 0.25.

Base conversion 20121487

Base	System	Value
2	Binary	1001100110000011110001111
3	Ternary	1101212021111021
4	Quaternary	1030300132033
5	Quinary	20122341422
6	Senary	1555135011
8	Octal	114603617
10	Decimal	20121487
12	Duodecimal	68a4467
16	Hexadecimal	133078f
20	Vigesimal	65f3e7
36	Base36	bz9u7

Cryptographic Hash Functions

md5	8a5b6db134aa27231a5be69e3bf0bdda
sha1	fe3d2131874eb43787ed7c5ca4203ad3940f005a
sha256	78de37b418f940f9445e423cdb1c975c0fc00329c0a4b88c2a2fe8ef8cb63afd
sha512	1ed800474e3753ce5515288bfb8a1f17c53e3780974949cb12a22fb341e1b7fd7555582a7048cebb98b9371f560d6a2b20335fa667c4b3202767b2381253dbb1
ripemd-160	0dead368c0edf5be12c9b7ea5f99ad2a9abd03cb

20121487 as geometric shapes

Circle

Radius = n

Diameter	40242974
Circumference	126427031.47701
Area	1.2719499351566E+15

Sphere

Radius = n

Volume	3.4124698779872E+22
Surface area	5.0877997406263E+15
Circumference	126427031.47701

Square

Length = n

Perimeter	80485948
Area	404874239091169
Diagonal	28456079.810514

Cube

Length = n

Surface area	2429245434547014
Volume	8.1466717385078E+21
Space diagonal	34851437.807837

Equilateral Triangle

Length = n

Perimeter	60364461
Area	1.7531568819542E+14
Altitude	17425718.903918

Triangular Pyramid

Length = n

Surface area	1.7531568819542E+14
Volume	9.6009447173328E+20
Height	9485359.936838