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

21491379 (number)

21491379 is an odd 8-digits composite number following 21491378 and preceding 21491380. In scientific notation, it is written as 2.1491379 × 10^7. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 11334816 positive integers (up to 21491379) that are relatively prime to 21491379.

Interesting facts

21491379 has 8 divisors, whose sum is 24634368
The reverse of 21491379 is 97319412
Previous prime number is 7

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 three hundred seventy-nine

Notation

Scientific notation	2.1491379 × 10^7
Engineering notation	2.1491379 × 10^6

Prime Factorization of 21491379

Prime Factorization 351 × 7 × 8747

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21491379	Product of the distinct prime numbers

The prime factorization of 21491379 is 351 × 7 × 8747. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 7, 75, 83, 855, 130, 8267, 6442, 21793, 8716, 658331, 734868, 8810312, 6915079, 77980977, 8105767, 827695041, 48442885, 4742285586, 8618641247

Basic calculations (n = 21491379)

Multiplication

n×y

n×2	42982758
n×3	64474137
n×4	85965516
n×5	107456895

Division

n÷y

n÷2	10745689.5
n÷3	7163793
n÷3	5372844.75
n÷5	4298275.8

Exponentiation

n^y

n²	461879371321641
n³	9.9264246213551E+21
n⁴	2.1333255365247E+29
n⁵	4.5848107635832E+36

Nth Root

^y√n

²√n	4635.8795282017
³√n	278.02771750621
⁴√n	68.087293441594
⁵√n	29.27203101286

Divisors of 21491379

1, 7, 351, 2457, 8747, 61229, 3070197, 21491379

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	-21491378	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 21491379 can be divided by 8 positive divisors. The sum of these divisors (counting 21491379) is 1, the average is 0.125.

Base conversion 21491379

Base	System	Value
2	Binary	1010001111110111010110011
3	Ternary	1111102212122000
4	Quaternary	1101332322303
5	Quinary	21000211004
6	Senary	2044345043
8	Octal	121767263
10	Decimal	21491379
12	Duodecimal	7245183
16	Hexadecimal	147eeb3
20	Vigesimal	6e688j
36	Base36	csmur

Cryptographic Hash Functions

md5	3cead8936d7ee5ada49acbc1f82a8e3f
sha1	50da524c88ad042813dc0d958d89d4ed44e694c4
sha256	0e121ec19e39827a13e50eb1ebc19ff53e659bd2a3fcd2a6303c285d5061f481
sha512	917b94fd82fc86d4e7061e25d9c62a84966fad519e3e68f8245ce40a6e93a849bfea13c10c31313758a6351703ae69bc0ba3e6217fa67a75228f6bc0964b1c3e
ripemd-160	847dc094109ae0878d60a45cbae55c59c51f0f7d

21491379 as geometric shapes

Circle

Radius = n

Diameter	42982758
Circumference	135034316.76383
Area	1.4510368397887E+15

Sphere

Radius = n

Volume	4.1579710222483E+22
Surface area	5.804147359155E+15
Circumference	135034316.76383

Square

Length = n

Perimeter	85965516
Area	461879371321641
Diagonal	30393399.6559

Cube

Length = n

Surface area	2771276227929846
Volume	9.9264246213551E+21
Space diagonal	37224160.352719

Equilateral Triangle

Length = n

Perimeter	64474137
Area	1.9999963452426E+14
Altitude	18612080.176359

Triangular Pyramid

Length = n

Surface area	1.9999963452426E+14
Volume	1.1698403604496E+21
Height	10131133.218633