21531906 (number)

21531906 is an even 8-digits composite number following 21531905 and preceding 21531907. In scientific notation, it is written as 2.1531906 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors. There are 6350400 positive integers (up to 21531906) that are relatively prime to 21531906.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred thirty-one thousand nine hundred six

Notation

Scientific notation 2.1531906 × 10^7
Engineering notation 2.1531906 × 10^6

Prime Factorization of 21531906

Prime Factorization 2 × 81 × 11 × 43 × 281

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21531906
Product of the distinct prime numbers

The prime factorization of 21531906 is 2 × 81 × 11 × 43 × 281. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 7, 3, 44, 573, 231, 4856, 4377, 8638, 65982, 447062, 593555, 9802008, 1775158, 60657556, 81090535, 352592311, 101697627, 3955085538, 655276271

Basic calculations (n = 21531906)

Multiplication

n×y
n×2 43063812
n×3 64595718
n×4 86127624
n×5 107659530

Division

n÷y
n÷2 10765953
n÷3 7177302
n÷3 5382976.5
n÷5 4306381.2

Exponentiation

ny
n2 463622975992836
n3 9.982686338518E+21
n4 2.1494626386845E+29
n5 4.6282027486667E+36

Nth Root

y√n
2√n 4640.2484847258
3√n 278.20236977241
4√n 68.119369379977
5√n 29.283062541254

Divisors of 21531906

1, 2, 11, 22, 43, 81, 86, 162, 281, 473, 562, 891, 946, 1782, 3091, 3483, 6182, 6966, 12083, 22761, 24166, 38313, 45522, 76626, 132913, 250371, 265826, 500742, 978723, 1957446, 10765953, 21531906

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 -21531905
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 21531906 can be divided by 32 positive divisors. The sum of these divisors (counting 21531906) is 1, the average is 0.03125.

Base conversion 21531906

Base System Value
2 Binary 1010010001000110100000010
3 Ternary 1111111221020000
4 Quaternary 1102020310002
5 Quinary 21003010111
6 Senary 2045300430
8 Octal 122106402
10 Decimal 21531906
12 Duodecimal 7264716
16 Hexadecimal 1488d02
20 Vigesimal 6eb9f6
36 Base36 cti4i

Cryptographic Hash Functions

md5 279fc0b82326d0239e9f61c2180ff3b2
sha1 dd3911efe7a49340b25a7b31872efa5eaff50ddf
sha256 0d01349bfac4ec8c706f9948d6ff7deb3aabebfd967757abe53232b3f438a2c6
sha512 379dfd0ba939f1218bf9361239b1d0e229f535e5f6ba6ce354f4bd3a4504eccc41d63416fcc976d26a30eb09b42117d33fd619edb1b259980d5a91fee58c3273
ripemd-160 ae9c52e14913c40b699bf3909dc36821f91b8e84

21531906 as geometric shapes

Circle

Radius = n
Diameter 43063812
Circumference 135288955.41477
Area 1.4565145354145E+15

Sphere

Radius = n
Volume 4.1815378752239E+22
Surface area 5.8260581416581E+15
Circumference 135288955.41477

Square

Length = n
Perimeter 86127624
Area 463622975992836
Diagonal 30450713.488943

Cube

Length = n
Surface area 2781737855957016
Volume 9.982686338518E+21
Space diagonal 37294355.175797

Equilateral Triangle

Length = n
Perimeter 64595718
Area 2.0075463749397E+14
Altitude 18647177.587899

Triangular Pyramid

Length = n
Surface area 2.0075463749397E+14
Volume 1.1764708674041E+21
Height 10150237.829648