21787138 (number)

21787138 is an even 8-digits composite number following 21787137 and preceding 21787139. In scientific notation, it is written as 2.1787138 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors. There are 10701072 positive integers (up to 21787138) that are relatively prime to 21787138.

Interesting facts

Basic properties

Name

Name twenty-one million seven hundred eighty-seven thousand one hundred thirty-eight

Notation

Scientific notation 2.1787138 × 10^7
Engineering notation 2.1787138 × 10^6

Prime Factorization of 21787138

Prime Factorization 2 × 109 × 139 × 719

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21787138
Product of the distinct prime numbers

The prime factorization of 21787138 is 2 × 109 × 139 × 719. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 4, 20, 73, 789, 571, 6361, 8981, 65140, 25032, 810136, 188668, 6915764, 6737797, 76913773, 20406903, 395779324, 304107460, 4037543253, 6356936785

Basic calculations (n = 21787138)

Multiplication

n×y
n×2 43574276
n×3 65361414
n×4 87148552
n×5 108935690

Division

n÷y
n÷2 10893569
n÷3 7262379.3333333
n÷3 5446784.5
n÷5 4357427.6

Exponentiation

ny
n2 474679382231044
n3 1.0341905206423E+22
n4 2.2532051591525E+29
n5 4.9090891744767E+36

Nth Root

y√n
2√n 4667.6694398811
3√n 279.29729404182
4√n 68.320344260558
5√n 29.352158022059

Divisors of 21787138

1, 2, 109, 139, 218, 278, 719, 1438, 15151, 30302, 78371, 99941, 156742, 199882, 10893569, 21787138

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 -21787137
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 21787138 can be divided by 16 positive divisors. The sum of these divisors (counting 21787138) is 1, the average is 0.0625.

Base conversion 21787138

Base System Value
2 Binary 1010011000111001000000010
3 Ternary 1111222220100001
4 Quaternary 1103013020002
5 Quinary 21034142023
6 Senary 2054550214
8 Octal 123071002
10 Decimal 21787138
12 Duodecimal 736836a
16 Hexadecimal 14c7202
20 Vigesimal 6g37gi
36 Base36 cyz2a

Cryptographic Hash Functions

md5 60505f6db75e7b66604e2c5f30cf562c
sha1 a7663a103b4601bca4dd624d912e7307703b2b11
sha256 3c56d548410cd977b118e3b7699d2bf02fb2a4032285eaca7f9085c6d54386c4
sha512 0c90b01f21d99a70ae9f386cd7e54dfcc5c311d278bb0b2f3a65800287d650679e056810e11c7e6c62521b7d2b97ceab967ee84fe2b47d87691a211d801b6ec0
ripemd-160 3266805089b686b93693b0782d7f99bc09915d10

21787138 as geometric shapes

Circle

Radius = n
Diameter 43574276
Circumference 136892625.36709
Area 1.4912492600276E+15

Sphere

Radius = n
Volume 4.3320071227492E+22
Surface area 5.9649970401104E+15
Circumference 136892625.36709

Square

Length = n
Perimeter 87148552
Area 474679382231044
Diagonal 30811666.044894

Cube

Length = n
Surface area 2848076293386264
Volume 1.0341905206423E+22
Space diagonal 37736429.967515

Equilateral Triangle

Length = n
Perimeter 65361414
Area 2.0554220183239E+14
Altitude 18868214.983757

Triangular Pyramid

Length = n
Surface area 2.0554220183239E+14
Volume 1.218805216975E+21
Height 10270555.348298