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

20121721 (number)

20121721 is an odd 8-digits composite number following 20121720 and preceding 20121722. In scientific notation, it is written as 2.0121721 × 10^7. The sum of its digits is 16. It has a total of 3 prime factors and 8 positive divisors. There are 19595520 positive integers (up to 20121721) that are relatively prime to 20121721.

Interesting facts

20121721 has 8 divisors, whose sum is 20650784
The reverse of 20121721 is 12712102
Previous prime number is 811

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7

Name

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

Notation

Scientific notation	2.0121721 × 10^7
Engineering notation	2.0121721 × 10^6

Prime Factorization of 20121721

Prime Factorization 43 × 811 × 577

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20121721	Product of the distinct prime numbers

The prime factorization of 20121721 is 43 × 811 × 577. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 5, 18, 54, 570, 149, 2911, 2730, 5352, 8976, 735714, 600329, 898546, 28217, 23316496, 30043155, 99771542, 588414110, 2667213685, 345404277

Basic calculations (n = 20121721)

Multiplication

n×y

n×2	40243442
n×3	60365163
n×4	80486884
n×5	100608605

Division

n÷y

n÷2	10060860.5
n÷3	6707240.3333333
n÷3	5030430.25
n÷5	4024344.2

Exponentiation

n^y

n²	404883656001841
n³	8.146955963529E+21
n⁴	1.6393077489742E+29
n⁵	3.2985693157996E+36

Nth Root

^y√n

²√n	4485.7241332922
³√n	271.99131766548
⁴√n	66.975548771863
⁵√n	28.889034303907

Divisors of 20121721

1, 43, 577, 811, 24811, 34873, 467947, 20121721

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	-20121720	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 20121721 can be divided by 8 positive divisors. The sum of these divisors (counting 20121721) is 1, the average is 0.125.

Base conversion 20121721

Base	System	Value
2	Binary	1001100110000100001111001
3	Ternary	1101212021210221
4	Quaternary	1030300201321
5	Quinary	20122343341
6	Senary	1555140041
8	Octal	114604171
10	Decimal	20121721
12	Duodecimal	68a4621
16	Hexadecimal	1330879
20	Vigesimal	65f461
36	Base36	bza0p

Cryptographic Hash Functions

md5	b187f0b7fa48caefdaccfc7981e5757e
sha1	c8f02057b799efd37f766124429e931d128fa757
sha256	b59310503af9b0fc7b840e9823054652e6777827199b882d1bd9816c66eb924f
sha512	7b4c2670ee2f07178b4fb40696e49f22e9236e7db864a1f7074f0b1496f3884b504667ff398975aa9346e798a6cdfe745d6e83f0605b083b2788eb4e2c2aaea7
ripemd-160	ae11ad2d74beb8937b6803ea76a17da6494c9407

20121721 as geometric shapes

Circle

Radius = n

Diameter	40243442
Circumference	126428501.74237
Area	1.271979519254E+15

Sphere

Radius = n

Volume	3.4125889338856E+22
Surface area	5.0879180770158E+15
Circumference	126428501.74237

Square

Length = n

Perimeter	80486884
Area	404883656001841
Diagonal	28456410.736488

Cube

Length = n

Surface area	2429301936011046
Volume	8.146955963529E+21
Space diagonal	34851843.107726

Equilateral Triangle

Length = n

Perimeter	60365163
Area	1.7531976583736E+14
Altitude	17425921.553863

Triangular Pyramid

Length = n

Surface area	1.7531976583736E+14
Volume	9.6012796797326E+20
Height	9485470.2454958