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

21491042 (number)

21491042 is an even 8-digits composite number following 21491041 and preceding 21491043. In scientific notation, it is written as 2.1491042 × 10^7. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 10745520 positive integers (up to 21491042) that are relatively prime to 21491042.

Interesting facts

21491042 has 4 divisors, whose sum is 32236566
The reverse of 21491042 is 24019412
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5

Name

Name	twenty-one million four hundred ninety-one thousand forty-two

Notation

Scientific notation	2.1491042 × 10^7
Engineering notation	2.1491042 × 10^6

Prime Factorization of 21491042

Prime Factorization 2 × 10745521

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21491042	Product of the distinct prime numbers

The prime factorization of 21491042 is 2 × 10745521. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 9, 29, 60, 803, 970, 9609, 8801, 79911, 81374, 145953, 187485, 728917, 48945, 46819159, 61385601, 255222986, 45838822, 9463166690, 7974205420

Basic calculations (n = 21491042)

Multiplication

n×y

n×2	42982084
n×3	64473126
n×4	85964168
n×5	107455210

Division

n÷y

n÷2	10745521
n÷3	7163680.6666667
n÷3	5372760.5
n÷5	4298208.4

Exponentiation

n^y

n²	461864886245764
n³	9.9259576686329E+21
n⁴	2.1331917314681E+29
n⁵	4.5844513095034E+36

Nth Root

^y√n

²√n	4635.8431811268
³√n	278.02626427496
⁴√n	68.087026525813
⁵√n	29.271939211061

Divisors of 21491042

1, 2, 10745521, 21491042

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	-21491041	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 21491042 can be divided by 4 positive divisors. The sum of these divisors (counting 21491042) is 1, the average is 0.25.

Base conversion 21491042

Base	System	Value
2	Binary	1010001111110110101100010
3	Ternary	1111102212011112
4	Quaternary	1101332311202
5	Quinary	21000203132
6	Senary	2044343322
8	Octal	121766542
10	Decimal	21491042
12	Duodecimal	7244b42
16	Hexadecimal	147ed62
20	Vigesimal	6e67c2
36	Base36	csmle

Cryptographic Hash Functions

md5	0a2abb9966f16f2df8b2e28fe23db8a3
sha1	cb56317d549aa4170bd66a8f1ca9896f6a2ed823
sha256	43439fa339cb4a8474b53dfb109f435aad5dc1b2e2e24fa14abac3809a233046
sha512	a61da7c104a57aaeacf3a7ceb2dfa42490cd58c1fdc93ebcbb7269117a8e2c846bf0ad2d556be7e25c7c767c8e87c3410f5c11507775be147d704dcbcf221b95
ripemd-160	096c2b4c0ac33958bdb5c73cb30308ab2a40bdc4

21491042 as geometric shapes

Circle

Radius = n

Diameter	42982084
Circumference	135032199.33038
Area	1.4509913335808E+15

Sphere

Radius = n

Volume	4.1577754255494E+22
Surface area	5.8039653343231E+15
Circumference	135032199.33038

Square

Length = n

Perimeter	85964168
Area	461864886245764
Diagonal	30392923.06593

Cube

Length = n

Surface area	2771189317474584
Volume	9.9259576686329E+21
Space diagonal	37223576.651597

Equilateral Triangle

Length = n

Perimeter	64473126
Area	1.9999336230242E+14
Altitude	18611788.325798

Triangular Pyramid

Length = n

Surface area	1.9999336230242E+14
Volume	1.1697853295435E+21
Height	10130974.35531