20921409 (number)

20921409 is an odd 8-digits composite number following 20921408 and preceding 20921410. In scientific notation, it is written as 2.0921409 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 13857696 positive integers (up to 20921409) that are relatively prime to 20921409.

Interesting facts

Basic properties

Name

Name twenty million nine hundred twenty-one thousand four hundred nine

Notation

Scientific notation 2.0921409 × 10^7
Engineering notation 2.0921409 × 10^6

Prime Factorization of 20921409

Prime Factorization 27 × 3 × 173 × 1493

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20921409
Product of the distinct prime numbers

The prime factorization of 20921409 is 27 × 3 × 173 × 1493. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 8, 88, 11, 626, 356, 1595, 2143, 64644, 26966, 33182, 472680, 1127496, 7151735, 84146193, 46384029, 387022541, 893559110, 8424457765, 8626873264

Basic calculations (n = 20921409)

Multiplication

n×y
n×2 41842818
n×3 62764227
n×4 83685636
n×5 104607045

Division

n÷y
n÷2 10460704.5
n÷3 6973803
n÷3 5230352.25
n÷5 4184281.8

Exponentiation

ny
n2 437705354545281
n3 9.1574127439318E+21
n4 1.9158597739761E+29
n5 4.0082485918002E+36

Nth Root

y√n
2√n 4573.9926759889
3√n 275.54781817817
4√n 67.631299529056
5√n 29.115093286147

Divisors of 20921409

1, 3, 27, 81, 173, 519, 1493, 4479, 4671, 14013, 40311, 120933, 258289, 774867, 6973803, 20921409

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20921408
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20921409 can be divided by 16 positive divisors. The sum of these divisors (counting 20921409) is 1, the average is 0.0625.

Base conversion 20921409

Base System Value
2 Binary 1001111110011110001000001
3 Ternary 1110100220210000
4 Quaternary 1033303301001
5 Quinary 20323441114
6 Senary 2024230213
8 Octal 117636101
10 Decimal 20921409
12 Duodecimal 700b369
16 Hexadecimal 13f3c41
20 Vigesimal 6af3a9
36 Base36 cgf29

Cryptographic Hash Functions

md5 dc4037683e04cbc7e2c228ac3fa7faa2
sha1 38934310255cb86fa5535c1b84a3e45ca8fd8c6b
sha256 ad490878a6a1e4bb67bf6d6bf95f33cfb88b559fd5dcaf4a0c5dd51148b8ef92
sha512 79761a6895e28ec711488a582a52c909184e887c42f48119953ec02faeb99f4b6dd872c1a6e64d01261c73c586e8e74371a1a55105a99f7b94e31c73ff83caa8
ripemd-160 b74539937376e8be6e0c32746e7a9d264f53d9b0

20921409 as geometric shapes

Circle

Radius = n
Diameter 41842818
Circumference 131453089.63429
Area 1.3750919262764E+15

Sphere

Radius = n
Volume 3.8358480802968E+22
Surface area 5.5003677051055E+15
Circumference 131453089.63429

Square

Length = n
Perimeter 83685636
Area 437705354545281
Diagonal 29587340.351755

Cube

Length = n
Surface area 2626232127271686
Volume 9.1574127439318E+21
Space diagonal 36236943.353929

Equilateral Triangle

Length = n
Perimeter 62764227
Area 1.8953197820434E+14
Altitude 18118471.676964

Triangular Pyramid

Length = n
Surface area 1.8953197820434E+14
Volume 1.0792114415597E+21
Height 9862446.7839182