21490986 (number)

21490986 is an even 8-digits composite number following 21490985 and preceding 21490987. In scientific notation, it is written as 2.1490986 × 10^7. The sum of its digits is 39. It has a total of 5 prime factors and 32 positive divisors. There are 6400880 positive integers (up to 21490986) that are relatively prime to 21490986.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety thousand nine hundred eighty-six

Notation

Scientific notation 2.1490986 × 10^7
Engineering notation 2.1490986 × 10^6

Prime Factorization of 21490986

Prime Factorization 2 × 3 × 11 × 59 × 5519

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21490986
Product of the distinct prime numbers

The prime factorization of 21490986 is 2 × 3 × 11 × 59 × 5519. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 9, 68, 37, 279, 163, 173, 384, 75630, 27922, 69296, 898862, 8474059, 7915771, 91982516, 73628287, 19501248, 905238281, 5838158454, 9516217900

Basic calculations (n = 21490986)

Multiplication

n×y
n×2 42981972
n×3 64472958
n×4 85963944
n×5 107454930

Division

n÷y
n÷2 10745493
n÷3 7163662
n÷3 5372746.5
n÷5 4298197.2

Exponentiation

ny
n2 461862479252196
n3 9.9258800755342E+21
n4 2.1331694974099E+29
n5 4.5843915804462E+36

Nth Root

y√n
2√n 4635.8371412292
3√n 278.02602278699
4√n 68.086982171552
5√n 29.271923956051

Divisors of 21490986

1, 2, 3, 6, 11, 22, 33, 59, 66, 118, 177, 354, 649, 1298, 1947, 3894, 5519, 11038, 16557, 33114, 60709, 121418, 182127, 325621, 364254, 651242, 976863, 1953726, 3581831, 7163662, 10745493, 21490986

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 -21490985
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 21490986 can be divided by 32 positive divisors. The sum of these divisors (counting 21490986) is 1, the average is 0.03125.

Base conversion 21490986

Base System Value
2 Binary 1010001111110110100101010
3 Ternary 1111102212002110
4 Quaternary 1101332310222
5 Quinary 21000202421
6 Senary 2044343150
8 Octal 121766452
10 Decimal 21490986
12 Duodecimal 7244ab6
16 Hexadecimal 147ed2a
20 Vigesimal 6e6796
36 Base36 csmju

Cryptographic Hash Functions

md5 67060a0791d46eb5a65d1eeed4d57028
sha1 8cb479743c667baea5d0fad2e7bcc0dd039de99e
sha256 197cbd389e0ca3a2fa0ee9f312f904832164b7affffcc6a471eb7431242599e6
sha512 420dd89c14f2fc2525d1962922d181acc0ed8a53e4ad106b7d3d2cc384d225dafaef341d0271562772fbedd24349f2ae349950eeed2b7a63dd99857f0f5ea508
ripemd-160 7ef5c863d556f4d34aeef5431f6d86cbb85633b0

21490986 as geometric shapes

Circle

Radius = n
Diameter 42981972
Circumference 135031847.472
Area 1.4509837717875E+15

Sphere

Radius = n
Volume 4.1577429234282E+22
Surface area 5.8039350871499E+15
Circumference 135031847.472

Square

Length = n
Perimeter 85963944
Area 461862479252196
Diagonal 30392843.86997

Cube

Length = n
Surface area 2771174875513176
Volume 9.9258800755342E+21
Space diagonal 37223479.656751

Equilateral Triangle

Length = n
Perimeter 64472958
Area 1.9999232004363E+14
Altitude 18611739.828376

Triangular Pyramid

Length = n
Surface area 1.9999232004363E+14
Volume 1.1697761851091E+21
Height 10130947.956657