21787130 (number)

21787130 is an even 8-digits composite number following 21787129 and preceding 21787131. In scientific notation, it is written as 2.1787130 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 8701440 positive integers (up to 21787130) that are relatively prime to 21787130.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1787130 × 10^7
Engineering notation 2.1787130 × 10^6

Prime Factorization of 21787130

Prime Factorization 2 × 5 × 881 × 2473

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21787130
Product of the distinct prime numbers

The prime factorization of 21787130 is 2 × 5 × 881 × 2473. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 10, 65, 5, 923, 65, 5333, 1361, 74565, 72539, 860900, 854885, 9535836, 5004267, 52733114, 48559054, 677167639, 791656633, 2753843627, 5943081747

Basic calculations (n = 21787130)

Multiplication

n×y
n×2 43574260
n×3 65361390
n×4 87148520
n×5 108935650

Division

n÷y
n÷2 10893565
n÷3 7262376.6666667
n÷3 5446782.5
n÷5 4357426

Exponentiation

ny
n2 474679033636900
n3 1.0341893814122E+22
n4 2.2532018497446E+29
n5 4.9090801616626E+36

Nth Root

y√n
2√n 4667.6685829223
3√n 279.29725985684
4√n 68.320337988935
5√n 29.3521558665

Divisors of 21787130

1, 2, 5, 10, 881, 1762, 2473, 4405, 4946, 8810, 12365, 24730, 2178713, 4357426, 10893565, 21787130

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 -21787129
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 21787130 can be divided by 16 positive divisors. The sum of these divisors (counting 21787130) is 1, the average is 0.0625.

Base conversion 21787130

Base System Value
2 Binary 1010011000111000111111010
3 Ternary 1111222220022202
4 Quaternary 1103013013322
5 Quinary 21034142010
6 Senary 2054550202
8 Octal 123070772
10 Decimal 21787130
12 Duodecimal 7368362
16 Hexadecimal 14c71fa
20 Vigesimal 6g37ga
36 Base36 cyz22

Cryptographic Hash Functions

md5 4947a6677ada436e03c1623326f65e15
sha1 0675474ce180dcf6403cdde1d4a59603175235fe
sha256 715099a0b875ac0abb018a4b5cdb1ec3a41acecbe8fcb7992dc0435665b6c971
sha512 f47bc01b0b6c8e7c6a288e98d3ced2254b4542c744088090f2fdcb1352ed6d042dd7af976d46985dc4c2d89685db34493dcc3d950f8918aa99b311a49ad5f973
ripemd-160 0d5a3162c37bb2637510ee68f2c197368a458c78

21787130 as geometric shapes

Circle

Radius = n
Diameter 43574260
Circumference 136892575.10161
Area 1.4912481648868E+15

Sphere

Radius = n
Volume 4.3320023507533E+22
Surface area 5.9649926595471E+15
Circumference 136892575.10161

Square

Length = n
Perimeter 87148520
Area 474679033636900
Diagonal 30811654.731186

Cube

Length = n
Surface area 2848074201821400
Volume 1.0341893814122E+22
Space diagonal 37736416.111108

Equilateral Triangle

Length = n
Perimeter 65361390
Area 2.055420508867E+14
Altitude 18868208.055554

Triangular Pyramid

Length = n
Surface area 2.055420508867E+14
Volume 1.2188038743794E+21
Height 10270551.577062