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

20121979 (number)

20121979 is an odd 8-digits composite number following 20121978 and preceding 20121980. In scientific notation, it is written as 2.0121979 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 19653984 positive integers (up to 20121979) that are relatively prime to 20121979.

Interesting facts

20121979 has 4 divisors, whose sum is 20589976
The reverse of 20121979 is 97912102
Previous prime number is 43

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

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

Notation

Scientific notation	2.0121979 × 10^7
Engineering notation	2.0121979 × 10^6

Prime Factorization of 20121979

Prime Factorization 43 × 467953

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20121979	Product of the distinct prime numbers

The prime factorization of 20121979 is 43 × 467953. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 5, 81, 86, 150, 490, 8777, 93, 36058, 60904, 667617, 826928, 6978908, 1816002, 13165969, 51841590, 811425197, 616557896, 5486878990, 6190127596

Basic calculations (n = 20121979)

Multiplication

n×y

n×2	40243958
n×3	60365937
n×4	80487916
n×5	100609895

Division

n÷y

n÷2	10060989.5
n÷3	6707326.3333333
n÷3	5030494.75
n÷5	4024395.8

Exponentiation

n^y

n²	404894038876441
n³	8.1472693474969E+21
n⁴	1.6393918271768E+29
n⁵	3.2987807919223E+36

Nth Root

^y√n

²√n	4485.7528910987
³√n	271.99248014822
⁴√n	66.975763460364
⁵√n	28.889108386364

Divisors of 20121979

1, 43, 467953, 20121979

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	-20121978	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 20121979 can be divided by 4 positive divisors. The sum of these divisors (counting 20121979) is 1, the average is 0.25.

Base conversion 20121979

Base	System	Value
2	Binary	1001100110000100101111011
3	Ternary	1101212022011111
4	Quaternary	1030300211323
5	Quinary	20122400404
6	Senary	1555141151
8	Octal	114604573
10	Decimal	20121979
12	Duodecimal	68a47b7
16	Hexadecimal	133097b
20	Vigesimal	65f4ij
36	Base36	bza7v

Cryptographic Hash Functions

md5	90b65c975ff8f241fd9a08a1faf1d3a4
sha1	1a5d7a30c718b2dc8b2ff1fcb6e315f361560a5f
sha256	29d2df4f05a9c1a4c5df9665567cb7ebe8902f0070ac96ca6c63be44163ae4ef
sha512	a2e02e6121fe872dd301f453ae21de3a3d28e006fb220a24ee30f9b3c366021f0ebc89d30bc64ffcce8528954eaaa89a22d619892f93388b64acdff1f97bb6a5
ripemd-160	2bfa2fd1b8711f6d582cd5bd5f93d9058df134f6

20121979 as geometric shapes

Circle

Radius = n

Diameter	40243958
Circumference	126430122.80418
Area	1.2720121380165E+15

Sphere

Radius = n

Volume	3.4127202038552E+22
Surface area	5.0880485520661E+15
Circumference	126430122.80418

Square

Length = n

Perimeter	80487916
Area	404894038876441
Diagonal	28456775.603587

Cube

Length = n

Surface area	2429364233258646
Volume	8.1472693474969E+21
Space diagonal	34852289.976834

Equilateral Triangle

Length = n

Perimeter	60365937
Area	1.7532426175394E+14
Altitude	17426144.988417

Triangular Pyramid

Length = n

Surface area	1.7532426175394E+14
Volume	9.6016490062806E+20
Height	9485591.8678622