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

20121818 (number)

20121818 is an even 8-digits composite number following 20121817 and preceding 20121819. In scientific notation, it is written as 2.0121818 × 10^7. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 10060908 positive integers (up to 20121818) that are relatively prime to 20121818.

Interesting facts

20121818 has 4 divisors, whose sum is 30182730
The reverse of 20121818 is 81812102
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5

Name

Name	twenty million one hundred twenty-one thousand eight hundred eighteen

Notation

Scientific notation	2.0121818 × 10^7
Engineering notation	2.0121818 × 10^6

Prime Factorization of 20121818

Prime Factorization 2 × 10060909

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20121818	Product of the distinct prime numbers

The prime factorization of 20121818 is 2 × 10060909. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 1, 32, 80, 769, 838, 3457, 4878, 1340, 12162, 172515, 585527, 5213246, 3331673, 59073590, 27451523, 719226959, 963464383, 8783809071, 8875418105

Basic calculations (n = 20121818)

Multiplication

n×y

n×2	40243636
n×3	60365454
n×4	80487272
n×5	100609090

Division

n÷y

n÷2	10060909
n÷3	6707272.6666667
n÷3	5030454.5
n÷5	4024363.6

Exponentiation

n^y

n²	404887559625124
n³	8.1470737852409E+21
n⁴	1.6393393593919E+29
n⁵	3.298648822992E+36

Nth Root

^y√n

²√n	4485.7349453573
³√n	271.99175472411
⁴√n	66.975629488325
⁵√n	28.889062156703

Divisors of 20121818

1, 2, 10060909, 20121818

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	-20121817	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 20121818 can be divided by 4 positive divisors. The sum of these divisors (counting 20121818) is 1, the average is 0.25.

Base conversion 20121818

Base	System	Value
2	Binary	1001100110000100011011010
3	Ternary	1101212021221112
4	Quaternary	1030300203122
5	Quinary	20122344233
6	Senary	1555140322
8	Octal	114604332
10	Decimal	20121818
12	Duodecimal	68a46a2
16	Hexadecimal	13308da
20	Vigesimal	65f4ai
36	Base36	bza3e

Cryptographic Hash Functions

md5	ba70eea6e94504f1da4e1574a0ff2831
sha1	498c0f821c48007faa05b8215a2a088f64df41c0
sha256	86d0f8851736bf7e66a1399515bab1234680828b66244b6fc65e6d0b27ecd1de
sha512	4e1e4afe559a1df6c4edfb509c912e535e4b156f9a6887779bbb03455b4a4f358e9260cb1c3e05e2018ff7ed5e926c1497a20b37182d91ea7f962ee85817e3fa
ripemd-160	05dcd67597a00489878b5cd854f8973845686bb5

20121818 as geometric shapes

Circle

Radius = n

Diameter	40243636
Circumference	126429111.21134
Area	1.2719917828482E+15

Sphere

Radius = n

Volume	3.4126382869289E+22
Surface area	5.0879671313928E+15
Circumference	126429111.21134

Square

Length = n

Perimeter	80487272
Area	404887559625124
Diagonal	28456547.915203

Cube

Length = n

Surface area	2429325357750744
Volume	8.1470737852409E+21
Space diagonal	34852011.116654

Equilateral Triangle

Length = n

Perimeter	60365454
Area	1.7532145615582E+14
Altitude	17426005.558327

Triangular Pyramid

Length = n

Surface area	1.7532145615582E+14
Volume	9.6014185339517E+20
Height	9485515.9717344