21015720 (number)

21015720 is an even 8-digits composite number following 21015719 and preceding 21015721. In scientific notation, it is written as 2.1015720 × 10^7. The sum of its digits is 18. It has a total of 9 prime factors and 192 positive divisors. There are 4838400 positive integers (up to 21015720) that are relatively prime to 21015720.

Interesting facts

Basic properties

Name

Name twenty-one million fifteen thousand seven hundred twenty

Notation

Scientific notation 2.1015720 × 10^7
Engineering notation 2.1015720 × 10^6

Prime Factorization of 21015720

Prime Factorization 2 × 2 × 2 × 3 × 5 × 3 × 33 × 29 × 61

Composite number
ω Distinct Factors 6
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 1751310
Product of the distinct prime numbers

The prime factorization of 21015720 is 2 × 2 × 2 × 3 × 5 × 3 × 33 × 29 × 61. Since it has a total of 9 prime factors.

Most popular turbo-numbers

7, 10, 13, 86, 769, 164, 2044, 5609, 59718, 3003, 834543, 958540, 4367794, 3490122, 85869301, 21145132, 29547118, 78471672, 2520003296, 4593916005

Basic calculations (n = 21015720)

Multiplication

n×y
n×2 42031440
n×3 63047160
n×4 84062880
n×5 105078600

Division

n÷y
n÷2 10507860
n÷3 7005240
n÷3 5253930
n÷5 4203144

Exponentiation

ny
n2 441660487118400
n3 9.2818131323439E+21
n4 1.9506398588166E+29
n5 4.099410109373E+36

Nth Root

y√n
2√n 4584.2905667071
3√n 275.96124219467
4√n 67.707389306538
5√n 29.141295495526

Divisors of 21015720

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 29, 30, 33, 36, 40, 45, 58, 60, 61, 66, 72, 87, 90, 99, 116, 120, 122, 132, 145, 165, 174, 180, 183, 198, 232, 244, 261, 264, 290, 297, 305, 330, 348, 360, 366, 396, 435, 488, 495, 522, 549, 580, 594, 610, 660, 696, 732, 792, 870, 915, 957, 990, 1044, 1098, 1160, 1188, 1220, 1305, 1320, 1464, 1485, 1740, 1769, 1830, 1914, 1980, 2013, 2088, 2196, 2376, 2440, 2610, 2745, 2871, 2970, 3480, 3538, 3660, 3828, 3960, 4026, 4392, 4785, 5220, 5307, 5490, 5742, 5940, 6039, 7076, 7320, 7656, 8052, 8613, 8845, 9570, 10065, 10440, 10614, 10980, 11484, 11880, 12078, 14152, 14355, 15921, 16104, 17226, 17690, 18117, 19140, 20130, 21228, 21960, 22968, 24156, 26535, 28710, 30195, 31842, 34452, 35380, 36234, 38280, 40260, 42456, 43065, 48312, 53070, 57420, 58377, 60390, 63684, 68904, 70760, 72468, 79605, 80520, 86130, 90585, 106140, 114840, 116754, 120780, 127368, 144936, 159210, 172260, 175131, 181170, 212280, 233508, 241560, 291885, 318420, 344520, 350262, 362340, 467016, 525393, 583770, 636840, 700524, 724680, 875655, 1050786, 1167540, 1401048, 1751310, 2101572, 2335080, 2626965, 3502620, 4203144, 5253930, 7005240, 10507860, 21015720

192 divisors

τ Total Divisors 192
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21015719
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0052083333333333
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 192
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21015720 can be divided by 192 positive divisors. The sum of these divisors (counting 21015720) is 1, the average is 0.0052083333333333.

Base conversion 21015720

Base System Value
2 Binary 1010000001010110010101000
3 Ternary 1110112201011000
4 Quaternary 1100022302220
5 Quinary 20340000340
6 Senary 2030235000
8 Octal 120126250
10 Decimal 21015720
12 Duodecimal 7055a60
16 Hexadecimal 140aca8
20 Vigesimal 6b6j60
36 Base36 cifu0

Cryptographic Hash Functions

md5 5700ba40e9c785fddfce7cc6a0372147
sha1 dde2373f94df35e1a39c35195c0f02bd84af5aee
sha256 6a7296798354bda2a946b14344152bec857c29c109ac47d1090e4d6d2a1dba30
sha512 883c84db670dbba3a155ae3fda5604c38f8fd134aefc970a61d9ea6cf482407e08e442f905d73a0c13f2b196399d669d541bd0c6ece24000a712c45c71a0bde9
ripemd-160 9080b3a8019828fb8a475735638234c888b1130a

21015720 as geometric shapes

Circle

Radius = n
Diameter 42031440
Circumference 132045663.1238
Area 1.3875173417121E+15

Sphere

Radius = n
Volume 3.887956793142E+22
Surface area 5.5500693668482E+15
Circumference 132045663.1238

Square

Length = n
Perimeter 84062880
Area 441660487118400
Diagonal 29720716.247036

Cube

Length = n
Surface area 2649962922710400
Volume 9.2818131323439E+21
Space diagonal 36400294.797641

Equilateral Triangle

Length = n
Perimeter 63047160
Area 1.9124460084617E+14
Altitude 18200147.398821

Triangular Pyramid

Length = n
Surface area 1.9124460084617E+14
Volume 1.0938721679311E+21
Height 9906905.4156785