21686786 (number)

21686786 is an even 8-digits composite number following 21686785 and preceding 21686787. In scientific notation, it is written as 2.1686786 × 10^7. The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors. There are 9616800 positive integers (up to 21686786) that are relatively prime to 21686786.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1686786 × 10^7
Engineering notation 2.1686786 × 10^6

Prime Factorization of 21686786

Prime Factorization 2 × 11 × 41 × 24043

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21686786
Product of the distinct prime numbers

The prime factorization of 21686786 is 2 × 11 × 41 × 24043. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 1, 93, 86, 978, 51, 793, 5729, 62293, 11293, 768471, 215407, 5010890, 3463692, 51707218, 40050597, 498719833, 914694575, 2429545332, 3302969654

Basic calculations (n = 21686786)

Multiplication

n×y
n×2 43373572
n×3 65060358
n×4 86747144
n×5 108433930

Division

n÷y
n÷2 10843393
n÷3 7228928.6666667
n÷3 5421696.5
n÷5 4337357.2

Exponentiation

ny
n2 470316687009796
n3 1.019965734341E+22
n4 2.2119778607987E+29
n5 4.7970690503879E+36

Nth Root

y√n
2√n 4656.9073428618
3√n 278.86781763722
4√n 68.24153678561
5√n 29.325068739297

Divisors of 21686786

1, 2, 11, 22, 41, 82, 451, 902, 24043, 48086, 264473, 528946, 985763, 1971526, 10843393, 21686786

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 -21686785
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 21686786 can be divided by 16 positive divisors. The sum of these divisors (counting 21686786) is 1, the average is 0.0625.

Base conversion 21686786

Base System Value
2 Binary 1010010101110101000000010
3 Ternary 1111210210200022
4 Quaternary 1102232220002
5 Quinary 21022434121
6 Senary 2052453442
8 Octal 122565002
10 Decimal 21686786
12 Duodecimal 731a282
16 Hexadecimal 14aea02
20 Vigesimal 6fagj6
36 Base36 cwtmq

Cryptographic Hash Functions

md5 b6637db382d0da01bd139cd81449ea26
sha1 a5a84a31586a6ee8b378a1c4ff982b1ec60ed0d7
sha256 f77c2ba5ab6bb4017b7469ab4ce43dd952d1d2215ba316068d18e947c513c63a
sha512 d205650e20086d53c0ea2fb4dc41961f709ff589d903d2ac0cecaed9f125868244a532eb857cc7a70987b0113c3900f6593907b945b34488b465122a141d39f5
ripemd-160 1ca56920f710de8b42391dd625586529d939d6a0

21686786 as geometric shapes

Circle

Radius = n
Diameter 43373572
Circumference 136262095.15515
Area 1.4775434487707E+15

Sphere

Radius = n
Volume 4.2724224772255E+22
Surface area 5.9101737950827E+15
Circumference 136262095.15515

Square

Length = n
Perimeter 86747144
Area 470316687009796
Diagonal 30669746.885483

Cube

Length = n
Surface area 2821900122058776
Volume 1.019965734341E+22
Space diagonal 37562615.204873

Equilateral Triangle

Length = n
Perimeter 65060358
Area 2.0365309938711E+14
Altitude 18781307.602437

Triangular Pyramid

Length = n
Surface area 2.0365309938711E+14
Volume 1.2020411455508E+21
Height 10223248.961828