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

21493905 (number)

21493905 is an odd 8-digits composite number following 21493904 and preceding 21493906. In scientific notation, it is written as 2.1493905 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 11463408 positive integers (up to 21493905) that are relatively prime to 21493905.

Interesting facts

21493905 has 8 divisors, whose sum is 34390272
The reverse of 21493905 is 50939412
Previous prime number is 3

Basic properties

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

Name

Name	twenty-one million four hundred ninety-three thousand nine hundred five

Notation

Scientific notation	2.1493905 × 10^7
Engineering notation	2.1493905 × 10^6

Prime Factorization of 21493905

Prime Factorization 5 × 3 × 1432927

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21493905	Product of the distinct prime numbers

The prime factorization of 21493905 is 5 × 3 × 1432927. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 8, 95, 47, 189, 216, 5219, 7919, 86429, 56248, 708036, 999082, 3115976, 1519074, 38608995, 57121200, 57102807, 146343249, 5526228569, 1086311349

Basic calculations (n = 21493905)

Multiplication

n×y

n×2	42987810
n×3	64481715
n×4	85975620
n×5	107469525

Division

n÷y

n÷2	10746952.5
n÷3	7164635
n÷3	5373476.25
n÷5	4298781

Exponentiation

n^y

n²	461987952149025
n³	9.9299251546357E+21
n⁴	2.1343286793085E+29
n⁵	4.5875057871832E+36

Nth Root

^y√n

²√n	4636.1519604085
³√n	278.03860978851
⁴√n	68.089294021957
⁵√n	29.272719081079

Divisors of 21493905

1, 3, 5, 15, 1432927, 4298781, 7164635, 21493905

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	-21493904	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 21493905 can be divided by 8 positive divisors. The sum of these divisors (counting 21493905) is 1, the average is 0.125.

Base conversion 21493905

Base	System	Value
2	Binary	1010001111111100010010001
3	Ternary	1111110000002120
4	Quaternary	1101333202101
5	Quinary	21000301110
6	Senary	2044404453
8	Octal	121774221
10	Decimal	21493905
12	Duodecimal	7246729
16	Hexadecimal	147f891
20	Vigesimal	6e6ef5
36	Base36	csosx

Cryptographic Hash Functions

md5	521c6e1b4e96462582f0b721c697cf35
sha1	4376b6b1fd35d47debb7837080bb54eac878a495
sha256	e44a6f9c1e46420da88e5df4031bc1fdd5e714bb96e99040dc72cb3699624acb
sha512	00ade090df6847c1bb797b08458bcaa195878b77f019e8c2e192cac8ec63c7c5589efa49f6d62f944fa55ac5710b2cd1ff4bbc633b526344d578e1e10252d9f6
ripemd-160	e7faebfb3f6d35524c3e0f6f3fa1ce5c456c68e0

21493905 as geometric shapes

Circle

Radius = n

Diameter	42987810
Circumference	135050188.08991
Area	1.4513779565184E+15

Sphere

Radius = n

Volume	4.1594373222E+22
Surface area	5.8055118260735E+15
Circumference	135050188.08991

Square

Length = n

Perimeter	85975620
Area	461987952149025
Diagonal	30396971.959359

Cube

Length = n

Surface area	2771927712894150
Volume	9.9299251546357E+21
Space diagonal	37228535.513059

Equilateral Triangle

Length = n

Perimeter	64481715
Area	2.000466514017E+14
Altitude	18614267.756529

Triangular Pyramid

Length = n

Surface area	2.000466514017E+14
Volume	1.170252902253E+21
Height	10132323.986453