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

20121909 (number)

20121909 is an odd 8-digits composite number following 20121908 and preceding 20121910. In scientific notation, it is written as 2.0121909 × 10^7. The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors. There are 13214256 positive integers (up to 20121909) that are relatively prime to 20121909.

Interesting facts

20121909 has 8 divisors, whose sum is 27229920
The reverse of 20121909 is 90912102
Previous prime number is 67

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6

Name

Name	twenty million one hundred twenty-one thousand nine hundred nine

Notation

Scientific notation	2.0121909 × 10^7
Engineering notation	2.0121909 × 10^6

Prime Factorization of 20121909

Prime Factorization 3 × 67 × 100109

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20121909	Product of the distinct prime numbers

The prime factorization of 20121909 is 3 × 67 × 100109. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 1, 30, 67, 145, 524, 7560, 4082, 21814, 30552, 337456, 960201, 4241815, 3955541, 35296532, 94961806, 770546953, 479214504, 46580565, 2569376889

Basic calculations (n = 20121909)

Multiplication

n×y

n×2	40243818
n×3	60365727
n×4	80487636
n×5	100609545

Division

n÷y

n÷2	10060954.5
n÷3	6707303
n÷3	5030477.25
n÷5	4024381.8

Exponentiation

n^y

n²	404891221804281
n³	8.1471843200446E+21
n⁴	1.6393690149416E+29
n⁵	3.2987234136075E+36

Nth Root

^y√n

²√n	4485.7450886113
³√n	271.99216474691
⁴√n	66.97570521175
⁵√n	28.889088286547

Divisors of 20121909

1, 3, 67, 201, 100109, 300327, 6707303, 20121909

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20121908	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20121909 can be divided by 8 positive divisors. The sum of these divisors (counting 20121909) is 1, the average is 0.125.

Base conversion 20121909

Base	System	Value
2	Binary	1001100110000100100110101
3	Ternary	1101212022001220
4	Quaternary	1030300210311
5	Quinary	20122400114
6	Senary	1555140553
8	Octal	114604465
10	Decimal	20121909
12	Duodecimal	68a4759
16	Hexadecimal	1330935
20	Vigesimal	65f4f9
36	Base36	bza5x

Cryptographic Hash Functions

md5	43ece6f0ca2b9bdfc1add9cf3d7d5d4b
sha1	6928055c9c2e04d3a3e860c1f36ad9c1636adc16
sha256	451c7075a212c48d2433f4dd446bf01575bffd645d54ef5c231417916f8fbbe1
sha512	4988bafae3c154d65e73ff2731caa4b09059643b49343aaa8563a60d89d96764239e6b315181938f9fc23a25cb9c4ca4389ca79e8cf707e08592d65f8760a0b0
ripemd-160	cf2dd514734bf865d3025722490697c67b5fe5ee

20121909 as geometric shapes

Circle

Radius = n

Diameter	40243818
Circumference	126429682.9812
Area	1.2720032879233E+15

Sphere

Radius = n

Volume	3.4126845876392E+22
Surface area	5.0880131516933E+15
Circumference	126429682.9812

Square

Length = n

Perimeter	80487636
Area	404891221804281
Diagonal	28456676.608637

Cube

Length = n

Surface area	2429347330825686
Volume	8.1471843200446E+21
Space diagonal	34852168.733277

Equilateral Triangle

Length = n

Perimeter	60365727
Area	1.7532304192591E+14
Altitude	17426084.366639

Triangular Pyramid

Length = n

Surface area	1.7532304192591E+14
Volume	9.601548800467E+20
Height	9485558.8695457