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

21490821 (number)

21490821 is an odd 8-digits composite number following 21490820 and preceding 21490822. In scientific notation, it is written as 2.1490821 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 12670560 positive integers (up to 21490821) that are relatively prime to 21490821.

Interesting facts

21490821 has 16 divisors, whose sum is 30325824
The reverse of 21490821 is 12809412
Previous prime number is 37

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	twenty-one million four hundred ninety thousand eight hundred twenty-one

Notation

Scientific notation	2.1490821 × 10^7
Engineering notation	2.1490821 × 10^6

Prime Factorization of 21490821

Prime Factorization 3 × 33 × 37 × 5867

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	21490821	Product of the distinct prime numbers

The prime factorization of 21490821 is 3 × 33 × 37 × 5867. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 4, 36, 45, 1, 604, 9963, 7994, 69943, 5147, 705272, 987940, 8955800, 1686313, 87462456, 71791135, 894796012, 565665767, 4364748162, 8236131505

Basic calculations (n = 21490821)

Multiplication

n×y

n×2	42981642
n×3	64472463
n×4	85963284
n×5	107454105

Division

n÷y

n÷2	10745410.5
n÷3	7163607
n÷3	5372705.25
n÷5	4298164.2

Exponentiation

n^y

n²	461855387254041
n³	9.9256514553623E+21
n⁴	2.1331039873558E+29
n⁵	4.584215596665E+36

Nth Root

^y√n

²√n	4635.8193450565
³√n	278.0253112575
⁴√n	68.086851484383
⁵√n	29.271879008069

Divisors of 21490821

1, 3, 33, 37, 99, 111, 1221, 3663, 5867, 17601, 193611, 217079, 580833, 651237, 7163607, 21490821

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	-21490820	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 21490821 can be divided by 16 positive divisors. The sum of these divisors (counting 21490821) is 1, the average is 0.0625.

Base conversion 21490821

Base	System	Value
2	Binary	1010001111110110010000101
3	Ternary	1111102211212100
4	Quaternary	1101332302011
5	Quinary	21000201241
6	Senary	2044342313
8	Octal	121766205
10	Decimal	21490821
12	Duodecimal	7244999
16	Hexadecimal	147ec85
20	Vigesimal	6e6711
36	Base36	csmf9

Cryptographic Hash Functions

md5	646447486cf99aa89d635f5e1e95dd9f
sha1	73736795860350f41750c360a6667a79b4d7ae43
sha256	67902608b06e47ad43802acdd37fc441a3c277d3ad9e9c1d2d479ae9186fcb83
sha512	4c3cdfca0a753118f2db9586f820db57f15df3b4c858288b4141f21c2a836ccb889f5d06e9f481a8e7b50320ff69b6f6658b378233b5be92dd9e80bf8b308dd6
ripemd-160	6d4de6e325ab9fed9bc4c84361ea35ac6e9b28a7

21490821 as geometric shapes

Circle

Radius = n

Diameter	42981642
Circumference	135030810.74643
Area	1.4509614916182E+15

Sphere

Radius = n

Volume	4.1576471592345E+22
Surface area	5.8038459664727E+15
Circumference	135030810.74643

Square

Length = n

Perimeter	85963284
Area	461855387254041
Diagonal	30392610.524733

Cube

Length = n

Surface area	2771132323524246
Volume	9.9256514553623E+21
Space diagonal	37223193.868368

Equilateral Triangle

Length = n

Perimeter	64472463
Area	1.9998924911835E+14
Altitude	18611596.934184

Triangular Pyramid

Length = n

Surface area	1.9998924911835E+14
Volume	1.1697492419635E+21
Height	10130870.174911