21386871 (number)

21386871 is an odd 8-digits composite number following 21386870 and preceding 21386872. In scientific notation, it is written as 2.1386871 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 12619200 positive integers (up to 21386871) that are relatively prime to 21386871.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred eighty-six thousand eight hundred seventy-one

Notation

Scientific notation 2.1386871 × 10^7
Engineering notation 2.1386871 × 10^6

Prime Factorization of 21386871

Prime Factorization 9 × 451 × 11 × 479

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21386871
Product of the distinct prime numbers

The prime factorization of 21386871 is 9 × 451 × 11 × 479. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 5, 85, 40, 197, 914, 3766, 4074, 96607, 19818, 512830, 305706, 9952679, 3683535, 36045694, 75034762, 109452178, 176709921, 9667607587, 8220404458

Basic calculations (n = 21386871)

Multiplication

n×y
n×2 42773742
n×3 64160613
n×4 85547484
n×5 106934355

Division

n÷y
n÷2 10693435.5
n÷3 7128957
n÷3 5346717.75
n÷5 4277374.2

Exponentiation

ny
n2 457398251170641
n3 9.7823173934121E+21
n4 2.0921316017396E+29
n5 4.4744148681428E+36

Nth Root

y√n
2√n 4624.5941443547
3√n 277.57632183632
4√n 68.004368568164
5√n 29.243506744985

Divisors of 21386871

1, 9, 11, 99, 451, 479, 4059, 4311, 4961, 5269, 44649, 47421, 216029, 1944261, 2376319, 21386871

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 -21386870
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 21386871 can be divided by 16 positive divisors. The sum of these divisors (counting 21386871) is 1, the average is 0.0625.

Base conversion 21386871

Base System Value
2 Binary 1010001100101011001110111
3 Ternary 1111020120021100
4 Quaternary 1101211121313
5 Quinary 20433334441
6 Senary 2042221143
8 Octal 121453167
10 Decimal 21386871
12 Duodecimal 71b47b3
16 Hexadecimal 1465677
20 Vigesimal 6dd73b
36 Base36 cqe7r

Cryptographic Hash Functions

md5 3c7edb432d36ebd7716f03029126c47d
sha1 59c966064d897275d4945f894bc1b7d5c9cea7d4
sha256 72fe248a58697391f8697742474af619840685f0c2e6515f0a2ab1b1cc5a6291
sha512 f35d24ce67a53bbf8e3ea0f0308b5a82b16ce925382093c99bdc85be36661881733f90407302faafab417a3fcc6922b95e0539a893b555aafd6989ed931c7506
ripemd-160 7262bcb1dbe912036004a9786b7ba9b7530745fd

21386871 as geometric shapes

Circle

Radius = n
Diameter 42773742
Circumference 134377673.63375
Area 1.4369589856425E+15

Sphere

Radius = n
Volume 4.0976075277636E+22
Surface area 5.74783594257E+15
Circumference 134377673.63375

Square

Length = n
Perimeter 85547484
Area 457398251170641
Diagonal 30245603.024924

Cube

Length = n
Surface area 2744389507023846
Volume 9.7823173934121E+21
Space diagonal 37043147.186921

Equilateral Triangle

Length = n
Perimeter 64160613
Area 1.9805925258018E+14
Altitude 18521573.593461

Triangular Pyramid

Length = n
Surface area 1.9805925258018E+14
Volume 1.1528571607668E+21
Height 10081867.674975