21490866 (number)

21490866 is an even 8-digits composite number following 21490865 and preceding 21490867. In scientific notation, it is written as 2.1490866 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 7112880 positive integers (up to 21490866) that are relatively prime to 21490866.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety thousand eight hundred sixty-six

Notation

Scientific notation 2.1490866 × 10^7
Engineering notation 2.1490866 × 10^6

Prime Factorization of 21490866

Prime Factorization 2 × 27 × 149 × 2671

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21490866
Product of the distinct prime numbers

The prime factorization of 21490866 is 2 × 27 × 149 × 2671. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 5, 43, 79, 115, 288, 4234, 233, 89677, 15506, 803308, 213990, 5895949, 6148635, 5561054, 91907694, 719162516, 988298999, 7266544960, 8385260148

Basic calculations (n = 21490866)

Multiplication

n×y
n×2 42981732
n×3 64472598
n×4 85963464
n×5 107454330

Division

n÷y
n÷2 10745433
n÷3 7163622
n÷3 5372716.5
n÷5 4298173.2

Exponentiation

ny
n2 461857321429956
n3 9.9257138059701E+21
n4 2.1331218535845E+29
n5 4.5842635917057E+36

Nth Root

y√n
2√n 4635.8241985649
3√n 278.02550531136
4√n 68.086887126413
5√n 29.271891266637

Divisors of 21490866

1, 2, 27, 54, 149, 298, 2671, 4023, 5342, 8046, 72117, 144234, 397979, 795958, 10745433, 21490866

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 -21490865
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 21490866 can be divided by 16 positive divisors. The sum of these divisors (counting 21490866) is 1, the average is 0.0625.

Base conversion 21490866

Base System Value
2 Binary 1010001111110110010110010
3 Ternary 1111102211221000
4 Quaternary 1101332302302
5 Quinary 21000201431
6 Senary 2044342430
8 Octal 121766262
10 Decimal 21490866
12 Duodecimal 7244a16
16 Hexadecimal 147ecb2
20 Vigesimal 6e6736
36 Base36 csmgi

Cryptographic Hash Functions

md5 54afb6b735af711085742084108f73e6
sha1 d3c756de94ca8a566a90fae1d3f2b7d818400405
sha256 45a5ac94244acf243ba25f371954b2f07f986dcee9e75a1c6bffafb426f04014
sha512 2443c189301e7d71d3f0d4dd3503edba2e326a7b5cdb4e504e8031b352c06bf63b41f7f2a0249c4f9a0162ae0e8e3f267c4fdfdcfdf202b6830ae3eb69ce3062
ripemd-160 2c2e6ec963c7eaa68012bb5bed26ddc01781137d

21490866 as geometric shapes

Circle

Radius = n
Diameter 42981732
Circumference 135031093.48977
Area 1.450967568011E+15

Sphere

Radius = n
Volume 4.1576732765961E+22
Surface area 5.803870272044E+15
Circumference 135031093.48977

Square

Length = n
Perimeter 85963464
Area 461857321429956
Diagonal 30392674.164343

Cube

Length = n
Surface area 2771143928579736
Volume 9.9257138059701E+21
Space diagonal 37223271.810655

Equilateral Triangle

Length = n
Perimeter 64472598
Area 1.9999008664109E+14
Altitude 18611635.905327

Triangular Pyramid

Length = n
Surface area 1.9999008664109E+14
Volume 1.1697565900531E+21
Height 10130891.388114