21508971 (number)

21508971 is an odd 8-digits composite number following 21508970 and preceding 21508972. In scientific notation, it is written as 2.1508971 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 12981920 positive integers (up to 21508971) that are relatively prime to 21508971.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred eight thousand nine hundred seventy-one

Notation

Scientific notation 2.1508971 × 10^7
Engineering notation 2.1508971 × 10^6

Prime Factorization of 21508971

Prime Factorization 3 × 11 × 269 × 2423

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21508971
Product of the distinct prime numbers

The prime factorization of 21508971 is 3 × 11 × 269 × 2423. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 10, 89, 16, 909, 786, 2089, 2986, 5884, 17608, 130127, 916117, 5559500, 4116922, 79515898, 43357374, 229030172, 375828092, 7435650433, 9068219507

Basic calculations (n = 21508971)

Multiplication

n×y
n×2 43017942
n×3 64526913
n×4 86035884
n×5 107544855

Division

n÷y
n÷2 10754485.5
n÷3 7169657
n÷3 5377242.75
n÷5 4301794.2

Exponentiation

ny
n2 462635833478841
n3 9.9508207258572E+21
n4 2.1403191441866E+29
n5 4.6036062403055E+36

Nth Root

y√n
2√n 4637.7765146673
3√n 278.10355767866
4√n 68.101222563676
5√n 29.276821631871

Divisors of 21508971

1, 3, 11, 33, 269, 807, 2423, 2959, 7269, 8877, 26653, 79959, 651787, 1955361, 7169657, 21508971

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 -21508970
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 21508971 can be divided by 16 positive divisors. The sum of these divisors (counting 21508971) is 1, the average is 0.0625.

Base conversion 21508971

Base System Value
2 Binary 1010010000011001101101011
3 Ternary 1111110202202120
4 Quaternary 1102003031223
5 Quinary 21001241341
6 Senary 2045002323
8 Octal 122031553
10 Decimal 21508971
12 Duodecimal 72533a3
16 Hexadecimal 148336b
20 Vigesimal 6e8c8b
36 Base36 ct0ff

Cryptographic Hash Functions

md5 ada88c5e4a900276a2cb08fb57f259e9
sha1 888988fa3edad3be879cf78470cc0f7d790651af
sha256 db9c897a3bc176647b446d7ef16de07bce809b4391ca3abbf64e7ff77a10ee9b
sha512 30a49d24721eba3c419f80e77ea042db8f39750331f03d56395569fde6b4714a2feeb39492f6cf4c525ecb5aa34ab1713840bc16aea8c18bc39f3c8e2fcdc437
ripemd-160 6fb8a1ae8e753123393c089d010b63980ddf8802

21508971 as geometric shapes

Circle

Radius = n
Diameter 43017942
Circumference 135144850.55975
Area 1.4534133357445E+15

Sphere

Radius = n
Volume 4.1681900386056E+22
Surface area 5.8136533429781E+15
Circumference 135144850.55975

Square

Length = n
Perimeter 86035884
Area 462635833478841
Diagonal 30418278.50089

Cube

Length = n
Surface area 2775815000873046
Volume 9.9508207258572E+21
Space diagonal 37254630.590526

Equilateral Triangle

Length = n
Perimeter 64526913
Area 2.0032719224683E+14
Altitude 18627315.295263

Triangular Pyramid

Length = n
Surface area 2.0032719224683E+14
Volume 1.1727154689375E+21
Height 10139426.166963