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

20991831 (number)

20991831 is an odd 8-digits composite number following 20991830 and preceding 20991832. In scientific notation, it is written as 2.0991831 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 11995320 positive integers (up to 20991831) that are relatively prime to 20991831.

Interesting facts

20991831 has 8 divisors, whose sum is 31987584
The reverse of 20991831 is 13819902
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

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

Notation

Scientific notation	2.0991831 × 10^7
Engineering notation	2.0991831 × 10^6

Prime Factorization of 20991831

Prime Factorization 3 × 7 × 999611

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20991831	Product of the distinct prime numbers

The prime factorization of 20991831 is 3 × 7 × 999611. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 4, 96, 54, 325, 328, 187, 6609, 97515, 49629, 539860, 694558, 5136684, 6285164, 10787533, 48886437, 511086421, 653240373, 440368976, 2548642823

Basic calculations (n = 20991831)

Multiplication

n×y

n×2	41983662
n×3	62975493
n×4	83967324
n×5	104959155

Division

n÷y

n÷2	10495915.5
n÷3	6997277
n÷3	5247957.75
n÷5	4198366.2

Exponentiation

n^y

n²	440656968732561
n³	9.2501966166062E+21
n⁴	1.9417856409257E+29
n⁵	4.0761636012539E+36

Nth Root

^y√n

²√n	4581.6842972863
³√n	275.85663894825
⁴√n	67.688140004629
⁵√n	29.134667379446

Divisors of 20991831

1, 3, 7, 21, 999611, 2998833, 6997277, 20991831

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	-20991830	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 20991831 can be divided by 8 positive divisors. The sum of these divisors (counting 20991831) is 1, the average is 0.125.

Base conversion 20991831

Base	System	Value
2	Binary	1010000000100111101010111
3	Ternary	1110111111101020
4	Quaternary	1100010331113
5	Quinary	20333214311
6	Senary	2025532223
8	Octal	120047527
10	Decimal	20991831
12	Duodecimal	7044073
16	Hexadecimal	1404f57
20	Vigesimal	6b3jbb
36	Base36	chxef

Cryptographic Hash Functions

md5	a87890975985aa6a569d839bf5cbb05d
sha1	dc96d0c3df15af4837c3adbebf6278ce850c5681
sha256	a0660443ec80b8903dd70f9204503af022da03906b144b5cc09ac9d924ee41c5
sha512	b4a13b4567f6f22b0d31b0e4380418697f146d54ab477384da656205adfcbe33e34b89923f4283054861eb38b3159504d31df82d8de12d4cd39778da6352da24
ripemd-160	849fae5716229ea3010e2f8a08c26a79105f9960

20991831 as geometric shapes

Circle

Radius = n

Diameter	41983662
Circumference	131895564.11
Area	1.3843646957234E+15

Sphere

Radius = n

Volume	3.8747132979988E+22
Surface area	5.5374587828934E+15
Circumference	131895564.11

Square

Length = n

Perimeter	83967324
Area	440656968732561
Diagonal	29686932.099244

Cube

Length = n

Surface area	2643941812395366
Volume	9.2501966166062E+21
Space diagonal	36358917.835899

Equilateral Triangle

Length = n

Perimeter	62975493
Area	1.9081006463852E+14
Altitude	18179458.91795

Triangular Pyramid

Length = n

Surface area	1.9081006463852E+14
Volume	1.0901461258185E+21
Height	9895644.0330813