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

20991231 (number)

20991231 is an odd 8-digits composite number following 20991230 and preceding 20991232. In scientific notation, it is written as 2.0991231 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 6 positive divisors. There are 13994100 positive integers (up to 20991231) that are relatively prime to 20991231.

Interesting facts

20991231 has 6 divisors, whose sum is 23582832
The reverse of 20991231 is 13219902
Previous prime number is 9

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	twenty million nine hundred ninety-one thousand two hundred thirty-one

Notation

Scientific notation	2.0991231 × 10^7
Engineering notation	2.0991231 × 10^6

Prime Factorization of 20991231

Prime Factorization 9 × 9 × 259151

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	2332359	Product of the distinct prime numbers

The prime factorization of 20991231 is 9 × 9 × 259151. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 3, 100, 21, 201, 765, 8199, 1420, 55141, 26909, 127539, 540211, 6348065, 2408951, 30911795, 96026371, 609152917, 232540793, 5222293474, 8324037622

Basic calculations (n = 20991231)

Multiplication

n×y

n×2	41982462
n×3	62973693
n×4	83964924
n×5	104956155

Division

n÷y

n÷2	10495615.5
n÷3	6997077
n÷3	5247807.75
n÷5	4198246.2

Exponentiation

n^y

n²	440631778895361
n³	9.2494034567334E+21
n⁴	1.9415636457249E+29
n⁵	4.0755810988614E+36

Nth Root

^y√n

²√n	4581.6188187146
³√n	275.85401069475
⁴√n	67.687656324581
⁵√n	29.134500828941

Divisors of 20991231

1, 9, 81, 259151, 2332359, 20991231

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-20991230	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20991231 can be divided by 6 positive divisors. The sum of these divisors (counting 20991231) is 1, the average is 0.16666666666667.

Base conversion 20991231

Base	System	Value
2	Binary	1010000000100110011111111
3	Ternary	1110111110120000
4	Quaternary	1100010303333
5	Quinary	20333204411
6	Senary	2025525343
8	Octal	120046377
10	Decimal	20991231
12	Duodecimal	7043853
16	Hexadecimal	1404cff
20	Vigesimal	6b3i1b
36	Base36	chwxr

Cryptographic Hash Functions

md5	b05b4ac4fe610d501587aae5cd6bb7df
sha1	1e164312e3fe63e0e36548ec57e8748b9d4b8ea1
sha256	35690b7171ea945d036692c2661fb3ba3f62c536df8ec298b274c1e6d0cebc96
sha512	fc1cafd97e2417465128f08bd2264ace5b31ab925f61399a0adb8ac87f061a2f642eaed4b09f66d7f86b8b0752e0228a33e43a5daa8f63f1c5a6768dbfc54f01
ripemd-160	3f53e0c149cd1d9ac944db9c6b6e3d2358b72ba9

20991231 as geometric shapes

Circle

Radius = n

Diameter	41982462
Circumference	131891794.19881
Area	1.3842855595159E+15

Sphere

Radius = n

Volume	3.8743810599682E+22
Surface area	5.5371422380635E+15
Circumference	131891794.19881

Square

Length = n

Perimeter	83964924
Area	440631778895361
Diagonal	29686083.571107

Cube

Length = n

Surface area	2643790673372166
Volume	9.2494034567334E+21
Space diagonal	36357878.605415

Equilateral Triangle

Length = n

Perimeter	62973693
Area	1.9079915711906E+14
Altitude	18178939.302707

Triangular Pyramid

Length = n

Surface area	1.9079915711906E+14
Volume	1.0900526510311E+21
Height	9895361.1903688