21505005 (number)

21505005 is an odd 8-digits composite number following 21505004 and preceding 21505006. In scientific notation, it is written as 2.1505005 × 10^7. The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors. There are 11412576 positive integers (up to 21505005) that are relatively prime to 21505005.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred five thousand five

Notation

Scientific notation 2.1505005 × 10^7
Engineering notation 2.1505005 × 10^6

Prime Factorization of 21505005

Prime Factorization 3 × 15 × 223 × 2143

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21505005
Product of the distinct prime numbers

The prime factorization of 21505005 is 3 × 15 × 223 × 2143. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 9, 98, 77, 503, 857, 7954, 8699, 66748, 93596, 996991, 549892, 7716392, 9652802, 52316020, 72961510, 883616875, 266802389, 5080148216, 4292956738

Basic calculations (n = 21505005)

Multiplication

n×y
n×2 43010010
n×3 64515015
n×4 86020020
n×5 107525025

Division

n÷y
n÷2 10752502.5
n÷3 7168335
n÷3 5376251.25
n÷5 4301001

Exponentiation

ny
n2 462465240050025
n3 9.945317299602E+21
n4 2.1387409825453E+29
n5 4.5993635523341E+36

Nth Root

y√n
2√n 4637.3489193719
3√n 278.08646362509
4√n 68.098083081478
5√n 29.275741892265

Divisors of 21505005

1, 3, 15, 45, 223, 669, 2143, 3345, 6429, 10035, 32145, 96435, 477889, 1433667, 7168335, 21505005

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 -21505004
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 21505005 can be divided by 16 positive divisors. The sum of these divisors (counting 21505005) is 1, the average is 0.0625.

Base conversion 21505005

Base System Value
2 Binary 1010010000010001111101101
3 Ternary 1111110120022200
4 Quaternary 1102002033231
5 Quinary 21001130010
6 Senary 2044532113
8 Octal 122021755
10 Decimal 21505005
12 Duodecimal 7251039
16 Hexadecimal 14823ed
20 Vigesimal 6e82a5
36 Base36 csxd9

Cryptographic Hash Functions

md5 e9cb669dcde3a51283a284321acfb9c3
sha1 dcb88f7cf1a1bee45e12df485e3b681c62f58197
sha256 e8d1abdfad7f3ded1493d1b7553b964b426b95d6321e0571f4ecd13862aba5f0
sha512 e13688d998640ad9bcfb90dab2acac240b28ef606ce4de2da8e414a1b8ec73e22b485b8128be891caec658e4bacf8c25491c0ed5994c1268cd60d9ab2f91e2ee
ripemd-160 b5ccf41b21c4524ab3f6feff36bb222f97bdb89b

21505005 as geometric shapes

Circle

Radius = n
Diameter 43010010
Circumference 135119931.44682
Area 1.4528774006818E+15

Sphere

Radius = n
Volume 4.1658847688065E+22
Surface area 5.8115096027272E+15
Circumference 135119931.44682

Square

Length = n
Perimeter 86020020
Area 462465240050025
Diagonal 30412669.729901

Cube

Length = n
Surface area 2774791440300150
Volume 9.945317299602E+21
Space diagonal 37247761.277023

Equilateral Triangle

Length = n
Perimeter 64515015
Area 2.002533231253E+14
Altitude 18623880.638511

Triangular Pyramid

Length = n
Surface area 2.002533231253E+14
Volume 1.1720668839334E+21
Height 10137556.576634