21388688 (number)

21388688 is an even 8-digits composite number following 21388687 and preceding 21388689. In scientific notation, it is written as 2.1388688 × 10^7. The sum of its digits is 44. It has a total of 5 prime factors and 10 positive divisors. There are 10694336 positive integers (up to 21388688) that are relatively prime to 21388688.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred eighty-eight thousand six hundred eighty-eight

Notation

Scientific notation 2.1388688 × 10^7
Engineering notation 2.1388688 × 10^6

Prime Factorization of 21388688

Prime Factorization 2 × 2 × 2 × 2 × 1336793

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 2673586
Product of the distinct prime numbers

The prime factorization of 21388688 is 2 × 2 × 2 × 2 × 1336793. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 8, 44, 43, 975, 607, 8956, 9925, 84306, 31875, 316247, 88436, 5426120, 8009823, 20702888, 30433827, 1939618, 534542227, 368998659, 6839008856

Basic calculations (n = 21388688)

Multiplication

n×y
n×2 42777376
n×3 64166064
n×4 85554752
n×5 106943440

Division

n÷y
n÷2 10694344
n÷3 7129562.6666667
n÷3 5347172
n÷5 4277737.6

Exponentiation

ny
n2 457475974361344
n3 9.7848108831108E+21
n4 2.0928426711786E+29
n5 4.4763158926926E+36

Nth Root

y√n
2√n 4624.7905898538
3√n 277.58418245159
4√n 68.005812912234
5√n 29.244003625956

Divisors of 21388688

1, 2, 4, 8, 16, 1336793, 2673586, 5347172, 10694344, 21388688

10 divisors

τ Total Divisors 10
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21388687
Sum of the proper positive divisors of n
A Arithmetic Mean 0.1
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 10
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21388688 can be divided by 10 positive divisors. The sum of these divisors (counting 21388688) is 1, the average is 0.1.

Base conversion 21388688

Base System Value
2 Binary 1010001100101110110010000
3 Ternary 1111020122202122
4 Quaternary 1101211312100
5 Quinary 20433414223
6 Senary 2042233412
8 Octal 121456620
10 Decimal 21388688
12 Duodecimal 71b5868
16 Hexadecimal 1465d90
20 Vigesimal 6ddbe8
36 Base36 cqfm8

Cryptographic Hash Functions

md5 25b27efd050d5d11ad55f5aed95027ee
sha1 dd536d79b2680f6c1e5f960fc73b2082350e6209
sha256 6fcb81182de63233fe0c38c6eef3c4e6edfe99802f4bc030c9bf1935383d3e46
sha512 eb9767ccc28581a858602986b674348426ecfb1f3056a73392174c6553347d07676adfc36fb35c381209575ebf0dd0614ba0b6b361d62fb5f992cb9382365c95
ripemd-160 dbb1aa39d1a70aafdca61c74653cf3197fc8283b

21388688 as geometric shapes

Circle

Radius = n
Diameter 42777376
Circumference 134389090.18145
Area 1.4372031602474E+15

Sphere

Radius = n
Volume 4.0986519982862E+22
Surface area 5.7488126409897E+15
Circumference 134389090.18145

Square

Length = n
Perimeter 85554752
Area 457475974361344
Diagonal 30248172.650967

Cube

Length = n
Surface area 2744855846168064
Volume 9.7848108831108E+21
Space diagonal 37046294.323239

Equilateral Triangle

Length = n
Perimeter 64166064
Area 1.9809290770898E+14
Altitude 18523147.161619

Triangular Pyramid

Length = n
Surface area 1.9809290770898E+14
Volume 1.1531510213459E+21
Height 10082724.216989