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

20120821 (number)

20120821 is an odd 8-digits composite number following 20120820 and preceding 20120822. In scientific notation, it is written as 2.0120821 × 10^7. The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors. There are 17246376 positive integers (up to 20120821) that are relatively prime to 20120821.

Interesting facts

20120821 has 4 divisors, whose sum is 20531500
The reverse of 20120821 is 12802102
Previous prime number is 49

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 thousand eight hundred twenty-one

Notation

Scientific notation	2.0120821 × 10^7
Engineering notation	2.0120821 × 10^6

Prime Factorization of 20120821

Prime Factorization 49 × 410629

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20120821	Product of the distinct prime numbers

The prime factorization of 20120821 is 49 × 410629. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 7, 84, 65, 649, 916, 6519, 1155, 50545, 52300, 813937, 214145, 5645451, 4715150, 24667247, 48292114, 114859384, 404998746, 8195308646, 3495032152

Basic calculations (n = 20120821)

Multiplication

n×y

n×2	40241642
n×3	60362463
n×4	80483284
n×5	100604105

Division

n÷y

n÷2	10060410.5
n÷3	6706940.3333333
n÷3	5030205.25
n÷5	4024164.2

Exponentiation

n^y

n²	404847437714041
n³	8.1458628265529E+21
n⁴	1.6390144782362E+29
n⁵	3.2978316933E+36

Nth Root

^y√n

²√n	4485.6238139193
³√n	271.98726241534
⁴√n	66.974799842324
⁵√n	28.888775870783

Divisors of 20120821

1, 49, 410629, 20120821

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	-20120820	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 20120821 can be divided by 4 positive divisors. The sum of these divisors (counting 20120821) is 1, the average is 0.25.

Base conversion 20120821

Base	System	Value
2	Binary	1001100110000010011110101
3	Ternary	1101212020120121
4	Quaternary	1030300103311
5	Quinary	20122331241
6	Senary	1555131541
8	Octal	114602365
10	Decimal	20120821
12	Duodecimal	68a3bb1
16	Hexadecimal	13304f5
20	Vigesimal	65f211
36	Base36	bz9bp

Cryptographic Hash Functions

md5	a8864f2b7d4dfa439296bd8f60c4cda8
sha1	2449cbb3e5f16602e5577594469955980280616e
sha256	6312e5642ec47b450426b6030ae8dd4d5e864970654632f77a380d94ef97559d
sha512	2479ee094280505c325aa70a767f8bc461a90d239e8f256a4fe92232f4879c219ab14831443f07d7bc29a3233ec6f48e9c3dec0715b393b913dc79eb3d36f80b
ripemd-160	8072917be7d03625c82962a4e7c6ec62f4ccff07

20120821 as geometric shapes

Circle

Radius = n

Diameter	40241642
Circumference	126422846.87559
Area	1.2718657361471E+15

Sphere

Radius = n

Volume	3.4121310417398E+22
Surface area	5.0874629445883E+15
Circumference	126422846.87559

Square

Length = n

Perimeter	80483284
Area	404847437714041
Diagonal	28455137.944281

Cube

Length = n

Surface area	2429084626284246
Volume	8.1458628265529E+21
Space diagonal	34850284.261999

Equilateral Triangle

Length = n

Perimeter	60362463
Area	1.753040828587E+14
Altitude	17425142.130999

Triangular Pyramid

Length = n

Surface area	1.753040828587E+14
Volume	9.5999914054516E+20
Height	9485045.9814271