20921388 (number)

20921388 is an even 8-digits composite number following 20921387 and preceding 20921389. In scientific notation, it is written as 2.0921388 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 24 positive divisors. There are 6926400 positive integers (up to 20921388) that are relatively prime to 20921388.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0921388 × 10^7
Engineering notation 2.0921388 × 10^6

Prime Factorization of 20921388

Prime Factorization 2 × 2 × 3 × 149 × 11701

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10460694
Product of the distinct prime numbers

The prime factorization of 20921388 is 2 × 2 × 3 × 149 × 11701. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 7, 4, 85, 122, 822, 9055, 4076, 57229, 43363, 864577, 148063, 8159699, 3278237, 17597345, 82633126, 431867298, 453116444, 9123991300, 9635254521

Basic calculations (n = 20921388)

Multiplication

n×y
n×2 41842776
n×3 62764164
n×4 83685552
n×5 104606940

Division

n÷y
n÷2 10460694
n÷3 6973796
n÷3 5230347
n÷5 4184277.6

Exponentiation

ny
n2 437704475846544
n3 9.1573851685222E+21
n4 1.915852081761E+29
n5 4.0082284753129E+36

Nth Root

y√n
2√n 4573.9903804009
3√n 275.54772598384
4√n 67.631282557711
5√n 29.115087441252

Divisors of 20921388

1, 2, 3, 4, 6, 12, 149, 298, 447, 596, 894, 1788, 11701, 23402, 35103, 46804, 70206, 140412, 1743449, 3486898, 5230347, 6973796, 10460694, 20921388

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 -20921387
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 20921388 can be divided by 24 positive divisors. The sum of these divisors (counting 20921388) is 1, the average is 0.041666666666667.

Base conversion 20921388

Base System Value
2 Binary 1001111110011110000101100
3 Ternary 1110100220202020
4 Quaternary 1033303300230
5 Quinary 20323441023
6 Senary 2024230140
8 Octal 117636054
10 Decimal 20921388
12 Duodecimal 700b350
16 Hexadecimal 13f3c2c
20 Vigesimal 6af398
36 Base36 cgf1o

Cryptographic Hash Functions

md5 117820df1a77893b61819f1431bafad2
sha1 9dbb9fd92c8d235f27b7e026a9dc94750ca13fbf
sha256 d987e4a8ef37ec0d017ee11fe14135a55a75e80a8a88a28e9757dca36ae62f8f
sha512 f76a8ce5ee7d5fd79c8ea301bc3a8524c1106c08c902aeec6fc5ea77d3da018a883f6aca85c3ed02840ec62bc623dfbca04e0ec39d565be9ce44d59136250a0c
ripemd-160 ba1e03ce4414dfd9703c43945526e248b0a3709a

20921388 as geometric shapes

Circle

Radius = n
Diameter 41842776
Circumference 131452957.6874
Area 1.3750891657629E+15

Sphere

Radius = n
Volume 3.8358365295362E+22
Surface area 5.5003566630515E+15
Circumference 131452957.6874

Square

Length = n
Perimeter 83685552
Area 437704475846544
Diagonal 29587310.65327

Cube

Length = n
Surface area 2626226855079264
Volume 9.1573851685222E+21
Space diagonal 36236906.980862

Equilateral Triangle

Length = n
Perimeter 62764164
Area 1.8953159771663E+14
Altitude 18118453.490431

Triangular Pyramid

Length = n
Surface area 1.8953159771663E+14
Volume 1.0792081917665E+21
Height 9862436.8844232