Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

21000840 (number)

21000840 is an even 8-digits composite number following 21000839 and preceding 21000841. In scientific notation, it is written as 2.1000840 × 10^7. The sum of its digits is 15. It has a total of 8 prime factors and 128 positive divisors. There are 4587264 positive integers (up to 21000840) that are relatively prime to 21000840.

Interesting facts

21000840 has 128 divisors, whose sum is 75202560
The reverse of 21000840 is 04800012
Previous prime number is 23

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 15
Digital Root 6

Name

Name	twenty-one million eight hundred forty

Notation

Scientific notation	2.1000840 × 10^7
Engineering notation	2.1000840 × 10^6

Prime Factorization of 21000840

Prime Factorization 2 × 2 × 2 × 3 × 5 × 7 × 23 × 1087

Composite number

ω	Distinct Factors	6	Total number of distinct prime factors
Ω	Total Factors	8	Total number of prime factors
rad	Radical	5250210	Product of the distinct prime numbers

The prime factorization of 21000840 is 2 × 2 × 2 × 3 × 5 × 7 × 23 × 1087. Since it has a total of 8 prime factors.

Most popular turbo-numbers

10, 5, 96, 37, 896, 695, 8264, 8681, 18220, 59257, 358252, 312666, 8426717, 5577326, 13145437, 94664185, 521069876, 216928153, 4431775854, 7810477804

Basic calculations (n = 21000840)

Multiplication

n×y

n×2	42001680
n×3	63002520
n×4	84003360
n×5	105004200

Division

n÷y

n÷2	10500420
n÷3	7000280
n÷3	5250210
n÷5	4200168

Exponentiation

n^y

n²	441035280705600
n³	9.2621113644534E+21
n⁴	1.9451211882707E+29
n⁵	4.0849178855482E+36

Nth Root

^y√n

²√n	4582.6673455532
³√n	275.89609615463
⁴√n	67.695401214213
⁵√n	29.137167677509

Divisors of 21000840

1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 161, 168, 184, 210, 230, 276, 280, 322, 345, 420, 460, 483, 552, 644, 690, 805, 840, 920, 966, 1087, 1288, 1380, 1610, 1932, 2174, 2415, 2760, 3220, 3261, 3864, 4348, 4830, 5435, 6440, 6522, 7609, 8696, 9660, 10870, 13044, 15218, 16305, 19320, 21740, 22827, 25001, 26088, 30436, 32610, 38045, 43480, 45654, 50002, 60872, 65220, 75003, 76090, 91308, 100004, 114135, 125005, 130440, 150006, 152180, 175007, 182616, 200008, 228270, 250010, 300012, 304360, 350014, 375015, 456540, 500020, 525021, 600024, 700028, 750030, 875035, 913080, 1000040, 1050042, 1400056, 1500060, 1750070, 2100084, 2625105, 3000120, 3500140, 4200168, 5250210, 7000280, 10500420, 21000840

128 divisors

τ	Total Divisors	128	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21000839	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.0078125	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	128	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21000840 can be divided by 128 positive divisors. The sum of these divisors (counting 21000840) is 1, the average is 0.0078125.

Base conversion 21000840

Base	System	Value
2	Binary	1010000000111001010001000
3	Ternary	1110111221201220
4	Quaternary	1100013022020
5	Quinary	20334011330
6	Senary	2030042040
8	Octal	120071210
10	Decimal	21000840
12	Duodecimal	7049320
16	Hexadecimal	1407288
20	Vigesimal	6b5220
36	Base36	ci4co

Cryptographic Hash Functions

md5	19632709bddeb2784323e5c6236affce
sha1	65359fd52080f4664d61d2e6fb600504f791fa9b
sha256	e028cf406772ab8f86d4d3db4068cda07de728b9bec8d2d7ecdfd6134d1b7449
sha512	74f87f23c09632cde01c4119b22d25ac58886177f18724fa3fb26103d03d3d0075a13d361e6f19d479204957b3c3f26d005a5515bd55aee9894c3c3f65022317
ripemd-160	403841fbd6d4e054612f87d1676376457d0c3731

21000840 as geometric shapes

Circle

Radius = n

Diameter	42001680
Circumference	131952169.32643
Area	1.3855531978386E+15

Sphere

Radius = n

Volume	3.8797041359063E+22
Surface area	5.5422127913545E+15
Circumference	131952169.32643

Square

Length = n

Perimeter	84003360
Area	441035280705600
Diagonal	29699672.749227

Cube

Length = n

Surface area	2646211684233600
Volume	9.2621113644534E+21
Space diagonal	36374521.881625

Equilateral Triangle

Length = n

Perimeter	63002520
Area	1.9097387852813E+14
Altitude	18187260.940812

Triangular Pyramid

Length = n

Surface area	1.9097387852813E+14
Volume	1.0915502923183E+21
Height	9899890.9164091