20921187 (number)

20921187 is an odd 8-digits composite number following 20921186 and preceding 20921188. In scientific notation, it is written as 2.0921187 × 10^7. The sum of its digits is 30. It has a total of 5 prime factors and 24 positive divisors. There are 11566800 positive integers (up to 20921187) that are relatively prime to 20921187.

Interesting facts

Basic properties

Name

Name twenty million nine hundred twenty-one thousand one hundred eighty-seven

Notation

Scientific notation 2.0921187 × 10^7
Engineering notation 2.0921187 × 10^6

Prime Factorization of 20921187

Prime Factorization 3 × 7 × 7 × 31 × 4591

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 2988741
Product of the distinct prime numbers

The prime factorization of 20921187 is 3 × 7 × 7 × 31 × 4591. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 4, 26, 5, 26, 744, 8925, 6750, 6178, 17852, 334872, 752713, 6074565, 3509746, 91831519, 75157442, 138993808, 927535873, 3698086951, 2639632834

Basic calculations (n = 20921187)

Multiplication

n×y
n×2 41842374
n×3 62763561
n×4 83684748
n×5 104605935

Division

n÷y
n÷2 10460593.5
n÷3 6973729
n÷3 5230296.75
n÷5 4184237.4

Exponentiation

ny
n2 437696065488969
n3 9.157121235259E+21
n4 1.9157784574452E+29
n5 4.0080359358783E+36

Nth Root

y√n
2√n 4573.9684082862
3√n 275.54684354923
4√n 67.631120117045
5√n 29.115031497018

Divisors of 20921187

1, 3, 7, 21, 31, 49, 93, 147, 217, 651, 1519, 4557, 4591, 13773, 32137, 96411, 142321, 224959, 426963, 674877, 996247, 2988741, 6973729, 20921187

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 -20921186
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 20921187 can be divided by 24 positive divisors. The sum of these divisors (counting 20921187) is 1, the average is 0.041666666666667.

Base conversion 20921187

Base System Value
2 Binary 1001111110011101101100011
3 Ternary 1110100220110210
4 Quaternary 1033303231203
5 Quinary 20323434222
6 Senary 2024225203
8 Octal 117635543
10 Decimal 20921187
12 Duodecimal 700b203
16 Hexadecimal 13f3b63
20 Vigesimal 6af2j7
36 Base36 cgew3

Cryptographic Hash Functions

md5 fead5d85b7890bb0ef5d4969b4b40d19
sha1 9dc30e54c2147ca3b74d10136b46b1bbc77e326a
sha256 aa1c42725a74c2e7e9d5bc198436cff9b3b7c3805c15394aa4c96f6895574657
sha512 24667d58f9f9da483accf26e54ba20644218ce6079bbb885a90a9bb3bfcafb1e1a4fef96bae5eac31f58795e9f3375fd8b7576eb3a8fa59f1a57c175eff3adcc
ripemd-160 003439b7ba13f0986fc4fd3143b4d86fe28a2ab9

20921187 as geometric shapes

Circle

Radius = n
Diameter 41842374
Circumference 131451694.76716
Area 1.3750627438453E+15

Sphere

Radius = n
Volume 3.8357259734294E+22
Surface area 5.5002509753812E+15
Circumference 131451694.76716

Square

Length = n
Perimeter 83684748
Area 437696065488969
Diagonal 29587026.396344

Cube

Length = n
Surface area 2626176392933814
Volume 9.157121235259E+21
Space diagonal 36236558.838649

Equilateral Triangle

Length = n
Perimeter 62763561
Area 1.8952795592497E+14
Altitude 18118279.419325

Triangular Pyramid

Length = n
Surface area 1.8952795592497E+14
Volume 1.0791770869332E+21
Height 9862342.1321146