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

21491919 (number)

21491919 is an odd 8-digits composite number following 21491918 and preceding 21491920. In scientific notation, it is written as 2.1491919 × 10^7. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 14327928 positive integers (up to 21491919) that are relatively prime to 21491919.

Interesting facts

21491919 has 8 divisors, whose sum is 31839920
The reverse of 21491919 is 91919412
Previous prime number is 9

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9

Name

Name	twenty-one million four hundred ninety-one thousand nine hundred nineteen

Notation

Scientific notation	2.1491919 × 10^7
Engineering notation	2.1491919 × 10^6

Prime Factorization of 21491919

Prime Factorization 3 × 9 × 795997

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21491919	Product of the distinct prime numbers

The prime factorization of 21491919 is 3 × 9 × 795997. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 3, 31, 95, 260, 389, 7978, 4209, 41671, 71025, 36699, 273761, 8341828, 5382948, 72141866, 56803953, 464804951, 453434467, 3849864887, 6788892349

Basic calculations (n = 21491919)

Multiplication

n×y

n×2	42983838
n×3	64475757
n×4	85967676
n×5	107459595

Division

n÷y

n÷2	10745959.5
n÷3	7163973
n÷3	5372979.75
n÷5	4298383.8

Exponentiation

n^y

n²	461902582302561
n³	9.9271728847375E+21
n⁴	2.1335399553777E+29
n⁵	4.5853867904242E+36

Nth Root

^y√n

²√n	4635.9377692113
³√n	278.03004609434
⁴√n	68.087721133926
⁵√n	29.272178111266

Divisors of 21491919

1, 3, 9, 27, 795997, 2387991, 7163973, 21491919

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	-21491918	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 21491919 can be divided by 8 positive divisors. The sum of these divisors (counting 21491919) is 1, the average is 0.125.

Base conversion 21491919

Base	System	Value
2	Binary	1010001111111000011001111
3	Ternary	1111102220101000
4	Quaternary	1101333003033
5	Quinary	21000220134
6	Senary	2044351343
8	Octal	121770317
10	Decimal	21491919
12	Duodecimal	7245553
16	Hexadecimal	147f0cf
20	Vigesimal	6e69fj
36	Base36	csn9r

Cryptographic Hash Functions

md5	89c297c6135879590738be303381d02f
sha1	a94a75de94b23292136890a0c0ecf0ac251ebbf6
sha256	96a0346399529dd315f761dec23a2da81250fbb56e95d9dda6a8dda3c59ad785
sha512	f9f6a2d491acf8ff960bc675f3c9229ddb2833a893106661b03daef1c30be13c6276059430658e57e63aa1d3f147c2a56f2f81fe07b4dc7de57c2304b989ef25
ripemd-160	95960ef117ec891350e81077e95cccfe9c056f53

21491919 as geometric shapes

Circle

Radius = n

Diameter	42983838
Circumference	135037709.68389
Area	1.4511097592359E+15

Sphere

Radius = n

Volume	4.1582844540809E+22
Surface area	5.8044390369435E+15
Circumference	135037709.68389

Square

Length = n

Perimeter	85967676
Area	461902582302561
Diagonal	30394163.331224

Cube

Length = n

Surface area	2771415493815366
Volume	9.9271728847375E+21
Space diagonal	37225095.660155

Equilateral Triangle

Length = n

Perimeter	64475757
Area	2.0000968517383E+14
Altitude	18612547.830077

Triangular Pyramid

Length = n

Surface area	2.0000968517383E+14
Volume	1.1699285441348E+21
Height	10131387.777075