21697988 (number)

21697988 is an even 8-digits composite number following 21697987 and preceding 21697989. In scientific notation, it is written as 2.1697988 × 10^7. The sum of its digits is 50. It has a total of 5 prime factors and 24 positive divisors. There are 9824256 positive integers (up to 21697988) that are relatively prime to 21697988.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred ninety-seven thousand nine hundred eighty-eight

Notation

Scientific notation 2.1697988 × 10^7
Engineering notation 2.1697988 × 10^6

Prime Factorization of 21697988

Prime Factorization 2 × 2 × 13 × 53 × 7873

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10848994
Product of the distinct prime numbers

The prime factorization of 21697988 is 2 × 2 × 13 × 53 × 7873. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 5, 2, 32, 96, 709, 6569, 9951, 85996, 59894, 183963, 253183, 8473721, 4173146, 9187911, 63142812, 576424878, 911686635, 20950735, 938841804

Basic calculations (n = 21697988)

Multiplication

n×y
n×2 43395976
n×3 65093964
n×4 86791952
n×5 108489940

Division

n÷y
n÷2 10848994
n÷3 7232662.6666667
n÷3 5424497
n÷5 4339597.6

Exponentiation

ny
n2 470802683248144
n3 1.0215470971486E+22
n4 2.2165516655365E+29
n5 4.8094711440191E+36

Nth Root

y√n
2√n 4658.109917123
3√n 278.91582443704
4√n 68.250347377307
5√n 29.328097602757

Divisors of 21697988

1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 7873, 15746, 31492, 102349, 204698, 409396, 417269, 834538, 1669076, 5424497, 10848994, 21697988

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21697987
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21697988 can be divided by 24 positive divisors. The sum of these divisors (counting 21697988) is 1, the average is 0.041666666666667.

Base conversion 21697988

Base System Value
2 Binary 1010010110001010111000100
3 Ternary 1111211101001012
4 Quaternary 1102301113010
5 Quinary 21023313423
6 Senary 2053021352
8 Octal 122612704
10 Decimal 21697988
12 Duodecimal 7324858
16 Hexadecimal 14b15c4
20 Vigesimal 6fc4j8
36 Base36 cx29w

Cryptographic Hash Functions

md5 39081c8eedbd2565e3de1604cf6a91f1
sha1 ea333054fdf9bce9851bb172b14f5dd4a488720c
sha256 685f594bcdf88e26470cf258666ef903f36337f55f1999b8ce8c6b762d61d5f9
sha512 e4758e2d190ede73a233ec41eb1fce3bec892ab336b15e572ad6fdc47e4c4d11228b5bb30926e90b4a62713c553dd0812ebaf31f66d1ce37d3e5cbca5550cf9d
ripemd-160 2e9b5e9ddfea000c828500afca02b3c25aae21a2

21697988 as geometric shapes

Circle

Radius = n
Diameter 43395976
Circumference 136332479.39696
Area 1.4790702509827E+15

Sphere

Radius = n
Volume 4.279046474264E+22
Surface area 5.9162810039309E+15
Circumference 136332479.39696

Square

Length = n
Perimeter 86791952
Area 470802683248144
Diagonal 30685588.905809

Cube

Length = n
Surface area 2824816099488864
Volume 1.0215470971486E+22
Space diagonal 37582017.63802

Equilateral Triangle

Length = n
Perimeter 65093964
Area 2.0386354193139E+14
Altitude 18791008.81901

Triangular Pyramid

Length = n
Surface area 2.0386354193139E+14
Volume 1.203904799492E+21
Height 10228529.63527