21356787 (number)

21356787 is an odd 8-digits composite number following 21356786 and preceding 21356788. In scientific notation, it is written as 2.1356787 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 14169960 positive integers (up to 21356787) that are relatively prime to 21356787.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1356787 × 10^7
Engineering notation 2.1356787 × 10^6

Prime Factorization of 21356787

Prime Factorization 3 × 211 × 33739

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21356787
Product of the distinct prime numbers

The prime factorization of 21356787 is 3 × 211 × 33739. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21356787)

Multiplication

n×y
n×2 42713574
n×3 64070361
n×4 85427148
n×5 106783935

Division

n÷y
n÷2 10678393.5
n÷3 7118929
n÷3 5339196.75
n÷5 4271357.4

Exponentiation

ny
n2 456112350963369
n3 9.7410943275939E+21
n4 2.0803847670133E+29
n5 4.4430334347148E+36

Nth Root

y√n
2√n 4621.3403899735
3√n 277.44610916816
4√n 67.980441231088
5√n 29.235274993043

Divisors of 21356787

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21356786
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21356787 can be divided by 8 positive divisors. The sum of these divisors (counting 21356787) is 1, the average is 0.125.

Base conversion 21356787

Base System Value
2 Binary 1010001011110000011110011
3 Ternary 1111012001000010
4 Quaternary 1101132003303
5 Quinary 20431404122
6 Senary 2041430003
8 Octal 121360363
10 Decimal 21356787
12 Duodecimal 719b303
16 Hexadecimal 145e0f3
20 Vigesimal 6d9bj7
36 Base36 cpr03

Cryptographic Hash Functions

md5 feea9592e17b34044bcd5f82eb5b6a16
sha1 b31894a6986b78aaac883da63088b22fb812254f
sha256 a0fdbe3169b3756b4a4975681a9c2f3da20d18579db49f3b28e694fac9f4cb50
sha512 b4cd3d6c8f252965520d7e157214e3e22c969569a47427c71a1994f800ef09787a12e5d1adb93284b7d35c0ce6849c3d3afba7f90bdc5d906aa2921b2e9b7d46
ripemd-160 4c0d5dd40940eeda06c5b533b598213127ab2eef

21356787 as geometric shapes

Circle

Radius = n
Diameter 42713574
Circumference 134188650.28696
Area 1.4329192109981E+15

Sphere

Radius = n
Volume 4.0803400503326E+22
Surface area 5.7316768439924E+15
Circumference 134188650.28696

Square

Length = n
Perimeter 85427148
Area 456112350963369
Diagonal 30203057.824113

Cube

Length = n
Surface area 2736674105780214
Volume 9.7410943275939E+21
Space diagonal 36991040.170426

Equilateral Triangle

Length = n
Perimeter 64070361
Area 1.9750244145706E+14
Altitude 18495520.085213

Triangular Pyramid

Length = n
Surface area 1.9750244145706E+14
Volume 1.1479989758699E+21
Height 10067685.941371