21000920 (number)

21000920 is an even 8-digits composite number following 21000919 and preceding 21000921. In scientific notation, it is written as 2.1000920 × 10^7. The sum of its digits is 14. It has a total of 6 prime factors and 32 positive divisors. There are 8346240 positive integers (up to 21000920) that are relatively prime to 21000920.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred twenty

Notation

Scientific notation 2.1000920 × 10^7
Engineering notation 2.1000920 × 10^6

Prime Factorization of 21000920

Prime Factorization 2 × 2 × 2 × 5 × 163 × 3221

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5250230
Product of the distinct prime numbers

The prime factorization of 21000920 is 2 × 2 × 2 × 5 × 163 × 3221. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 10, 72, 17, 461, 387, 7877, 8244, 28281, 12466, 552943, 635152, 7523160, 3607987, 67415016, 51997465, 857604861, 147958160, 3891182314, 2104457166

Basic calculations (n = 21000920)

Multiplication

n×y
n×2 42001840
n×3 63002760
n×4 84003680
n×5 105004600

Division

n÷y
n÷2 10500460
n÷3 7000306.6666667
n÷3 5250230
n÷5 4200184

Exponentiation

ny
n2 441038640846400
n3 9.262217213324E+21
n4 1.9451508271964E+29
n5 4.0849956909885E+36

Nth Root

y√n
2√n 4582.676074086
3√n 275.89644648443
4√n 67.695465683353
5√n 29.137189876334

Divisors of 21000920

1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3221, 3260, 6442, 6520, 12884, 16105, 25768, 32210, 64420, 128840, 525023, 1050046, 2100092, 2625115, 4200184, 5250230, 10500460, 21000920

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 -21000919
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 21000920 can be divided by 32 positive divisors. The sum of these divisors (counting 21000920) is 1, the average is 0.03125.

Base conversion 21000920

Base System Value
2 Binary 1010000000111001011011000
3 Ternary 1110111221211212
4 Quaternary 1100013023120
5 Quinary 20334012140
6 Senary 2030042252
8 Octal 120071330
10 Decimal 21000920
12 Duodecimal 7049388
16 Hexadecimal 14072d8
20 Vigesimal 6b5260
36 Base36 ci4ew

Cryptographic Hash Functions

md5 ac42640ceabaa40791900f03c7f88c4f
sha1 ceefe3080d1fe92247c1f97b1d3997dcfbfffe82
sha256 96d1087ba72d302954297e04b32dff1013bae854629f8b7be04f9f7fe9897d5d
sha512 b5f4d38b2cd43a27932fe2ee593a34e62a1c99477c50ac47e698133f022164883d02c79335fb02d6df0498b681b51b4712f4bb72734778260bedbea63c14cc01
ripemd-160 f8c72892847f64acc66769ea960a610c36632d8a

21000920 as geometric shapes

Circle

Radius = n
Diameter 42001840
Circumference 131952671.98125
Area 1.3855637540323E+15

Sphere

Radius = n
Volume 3.8797484737775E+22
Surface area 5.5422550161291E+15
Circumference 131952671.98125

Square

Length = n
Perimeter 84003680
Area 441038640846400
Diagonal 29699785.886312

Cube

Length = n
Surface area 2646231845078400
Volume 9.262217213324E+21
Space diagonal 36374660.445689

Equilateral Triangle

Length = n
Perimeter 63002760
Area 1.9097533351177E+14
Altitude 18187330.222845

Triangular Pyramid

Length = n
Surface area 1.9097533351177E+14
Volume 1.0915627667274E+21
Height 9899928.6287708