21128840 (number)

21128840 is an even 8-digits composite number following 21128839 and preceding 21128841. In scientific notation, it is written as 2.1128840 × 10^7. The sum of its digits is 26. It has a total of 6 prime factors and 32 positive divisors. There are 8398272 positive integers (up to 21128840) that are relatively prime to 21128840.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred twenty-eight thousand eight hundred forty

Notation

Scientific notation 2.1128840 × 10^7
Engineering notation 2.1128840 × 10^6

Prime Factorization of 21128840

Prime Factorization 2 × 2 × 2 × 5 × 167 × 3163

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5282210
Product of the distinct prime numbers

The prime factorization of 21128840 is 2 × 2 × 2 × 5 × 167 × 3163. Since it has a total of 6 prime factors.

Most popular turbo-numbers

2, 10, 66, 81, 76, 353, 2789, 1128, 20634, 36017, 304588, 511950, 7885766, 5170719, 64110190, 60083137, 597924290, 654897162, 3685686497, 2148875631

Basic calculations (n = 21128840)

Multiplication

n×y
n×2 42257680
n×3 63386520
n×4 84515360
n×5 105644200

Division

n÷y
n÷2 10564420
n÷3 7042946.6666667
n÷3 5282210
n÷5 4225768

Exponentiation

ny
n2 446427879745600
n3 9.432503242684E+21
n4 1.9929785181415E+29
n5 4.2109324233249E+36

Nth Root

y√n
2√n 4596.6117956599
3√n 276.4554895668
4√n 67.798317056251
5√n 29.172599573764

Divisors of 21128840

1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 668, 835, 1336, 1670, 3163, 3340, 6326, 6680, 12652, 15815, 25304, 31630, 63260, 126520, 528221, 1056442, 2112884, 2641105, 4225768, 5282210, 10564420, 21128840

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21128839
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21128840 can be divided by 32 positive divisors. The sum of these divisors (counting 21128840) is 1, the average is 0.03125.

Base conversion 21128840

Base System Value
2 Binary 1010000100110011010001000
3 Ternary 1110202110022122
4 Quaternary 1100212122020
5 Quinary 20402110330
6 Senary 2032510412
8 Octal 120463210
10 Decimal 21128840
12 Duodecimal 70ab408
16 Hexadecimal 1426688
20 Vigesimal 6c1220
36 Base36 ckv48

Cryptographic Hash Functions

md5 d2f9b592cd5a22cac7b0fd2f53a2fa87
sha1 39c974092664093ed1e981bfcc02fbca069b1340
sha256 cbbd4e37db403e8cb2e6a9ee7896d4e5c57fd5ac624c187bb34afb785a4be4d9
sha512 42cacec97ccbaa83f2bf8733245deacb6425a2d828451b1782f8405d6bfacbb51ac4fae750bd46ab9d36aca0a09a65708ea5f2c369366b8e038e24d7f8dc8042
ripemd-160 322a687f4a598c90ca2c7c50a5a5177bd12ff6ba

21128840 as geometric shapes

Circle

Radius = n
Diameter 42257680
Circumference 132756417.04575
Area 1.4024945473664E+15

Sphere

Radius = n
Volume 3.9510777189571E+22
Surface area 5.6099781894658E+15
Circumference 132756417.04575

Square

Length = n
Perimeter 84515360
Area 446427879745600
Diagonal 29880692.085211

Cube

Length = n
Surface area 2678567278473600
Volume 9.432503242684E+21
Space diagonal 36596224.384994

Equilateral Triangle

Length = n
Perimeter 63386520
Area 1.9330894240866E+14
Altitude 18298112.192497

Triangular Pyramid

Length = n
Surface area 1.9330894240866E+14
Volume 1.1116311677443E+21
Height 9960230.6950704