21509904 (number)

21509904 is an even 8-digits composite number following 21509903 and preceding 21509905. In scientific notation, it is written as 2.1509904 × 10^7. The sum of its digits is 30. It has a total of 7 prime factors and 40 positive divisors. There are 6618240 positive integers (up to 21509904) that are relatively prime to 21509904.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred nine thousand nine hundred four

Notation

Scientific notation 2.1509904 × 10^7
Engineering notation 2.1509904 × 10^6

Prime Factorization of 21509904

Prime Factorization 2 × 2 × 2 × 2 × 3 × 13 × 34471

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 2688738
Product of the distinct prime numbers

The prime factorization of 21509904 is 2 × 2 × 2 × 2 × 3 × 13 × 34471. Since it has a total of 7 prime factors.

Most popular turbo-numbers

2, 1, 33, 94, 725, 40, 8347, 8891, 32893, 20383, 137180, 455426, 3178580, 6567321, 7085976, 86987449, 552176683, 760558181, 4143644234, 974717036

Basic calculations (n = 21509904)

Multiplication

n×y
n×2 43019808
n×3 64529712
n×4 86039616
n×5 107549520

Division

n÷y
n÷2 10754952
n÷3 7169968
n÷3 5377476
n÷5 4301980.8

Exponentiation

ny
n2 462675970089216
n3 9.9521156997259E+21
n4 2.14069053298E+29
n5 4.6046047858108E+36

Nth Root

y√n
2√n 4637.8771005709
3√n 278.10757874298
4√n 68.101961062593
5√n 29.277075617063

Divisors of 21509904

1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 34471, 68942, 103413, 137884, 206826, 275768, 413652, 448123, 551536, 827304, 896246, 1344369, 1654608, 1792492, 2688738, 3584984, 5377476, 7169968, 10754952, 21509904

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21509903
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21509904 can be divided by 40 positive divisors. The sum of these divisors (counting 21509904) is 1, the average is 0.025.

Base conversion 21509904

Base System Value
2 Binary 1010010000011011100010000
3 Ternary 1111110211001010
4 Quaternary 1102003130100
5 Quinary 21001304104
6 Senary 2045010520
8 Octal 122033420
10 Decimal 21509904
12 Duodecimal 7253a40
16 Hexadecimal 1483710
20 Vigesimal 6e8ef4
36 Base36 ct15c

Cryptographic Hash Functions

md5 7bec49f018d587ed57c0b06dc9d635d4
sha1 56b93174502475defda4e272b92f2bc232338a9c
sha256 94b81a56274f64e054c7c3884d060a08caf97ab017d764aafca6c7ccc8f31090
sha512 a191e51b867041e9d90414812296f49028fe87982a2776d5b027e77fa7fbd7432c1ab0559df1959ef92abf8c3f1f792ed129b4c40a662cc3e1109b638075a64e
ripemd-160 588ddaaece1395ab4fc7fd520680217710959881

21509904 as geometric shapes

Circle

Radius = n
Diameter 43019808
Circumference 135150712.77164
Area 1.4535394286248E+15

Sphere

Radius = n
Volume 4.1687324759913E+22
Surface area 5.8141577144992E+15
Circumference 135150712.77164

Square

Length = n
Perimeter 86039616
Area 462675970089216
Diagonal 30419597.962143

Cube

Length = n
Surface area 2776055820535296
Volume 9.9521156997259E+21
Space diagonal 37256246.593929

Equilateral Triangle

Length = n
Perimeter 64529712
Area 2.0034457190894E+14
Altitude 18628123.296965

Triangular Pyramid

Length = n
Surface area 2.0034457190894E+14
Volume 1.1728680830715E+21
Height 10139865.987381