21256870 (number)

21256870 is an even 8-digits composite number following 21256869 and preceding 21256871. In scientific notation, it is written as 2.1256870 × 10^7. The sum of its digits is 31. It has a total of 5 prime factors and 32 positive divisors. There are 8149248 positive integers (up to 21256870) that are relatively prime to 21256870.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred fifty-six thousand eight hundred seventy

Notation

Scientific notation 2.1256870 × 10^7
Engineering notation 2.1256870 × 10^6

Prime Factorization of 21256870

Prime Factorization 2 × 5 × 73 × 37 × 787

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21256870
Product of the distinct prime numbers

The prime factorization of 21256870 is 2 × 5 × 73 × 37 × 787. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 7, 44, 52, 748, 307, 7126, 8017, 42830, 53020, 706418, 5260, 9783774, 7542584, 18258071, 8019760, 3134389, 509923376, 6519955186, 9736203241

Basic calculations (n = 21256870)

Multiplication

n×y
n×2 42513740
n×3 63770610
n×4 85027480
n×5 106284350

Division

n÷y
n÷2 10628435
n÷3 7085623.3333333
n÷3 5314217.5
n÷5 4251374

Exponentiation

ny
n2 451854522196900
n3 9.6050128372516E+21
n4 2.0417250922979E+29
n5 4.3400684862714E+36

Nth Root

y√n
2√n 4610.5173245526
3√n 277.01275860377
4√n 67.900790308749
5√n 29.207868409128

Divisors of 21256870

1, 2, 5, 10, 37, 73, 74, 146, 185, 365, 370, 730, 787, 1574, 2701, 3935, 5402, 7870, 13505, 27010, 29119, 57451, 58238, 114902, 145595, 287255, 291190, 574510, 2125687, 4251374, 10628435, 21256870

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 -21256869
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 21256870 can be divided by 32 positive divisors. The sum of these divisors (counting 21256870) is 1, the average is 0.03125.

Base conversion 21256870

Base System Value
2 Binary 1010001000101101010100110
3 Ternary 1110222221221111
4 Quaternary 1101011222212
5 Quinary 20420204440
6 Senary 2035335234
8 Octal 121055246
10 Decimal 21256870
12 Duodecimal 715151a
16 Hexadecimal 1445aa6
20 Vigesimal 6ch23a
36 Base36 cnlwm

Cryptographic Hash Functions

md5 8542d9c2fdbf697501550c7ff3f51bc3
sha1 129f2543c9190a6dcccff809f944a4b512d9ec02
sha256 cc2e80e1822867e3e8c031289e91a057de5c42e7be66f9423aa6072085106dbc
sha512 f87ac4e15db29ca7ae6c8639842d0ee5f49be24d88a6765a73d735dcc1445e5db17ba851b0c37cb18a5b3c7fbc346a8b0fb96afe282071cf306721885c207bb4
ripemd-160 3a60034ae922c13248ae2bafe89ecee8d0bd31ef

21256870 as geometric shapes

Circle

Radius = n
Diameter 42513740
Circumference 133560853.26063
Area 1.4195428474251E+15

Sphere

Radius = n
Volume 4.0233383689527E+22
Surface area 5.6781713897004E+15
Circumference 133560853.26063

Square

Length = n
Perimeter 85027480
Area 451854522196900
Diagonal 30061753.847602

Cube

Length = n
Surface area 2711127133181400
Volume 9.6050128372516E+21
Space diagonal 36817978.849887

Equilateral Triangle

Length = n
Perimeter 63770610
Area 1.956587475187E+14
Altitude 18408989.424943

Triangular Pyramid

Length = n
Surface area 1.956587475187E+14
Volume 1.1319616184341E+21
Height 10020584.615867