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

28506721 (number)

28506721 is an odd 8-digits composite number following 28506720 and preceding 28506722. In scientific notation, it is written as 2.8506721 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 27843732 positive integers (up to 28506721) that are relatively prime to 28506721.

Interesting facts

28506721 has 4 divisors, whose sum is 29169712
The reverse of 28506721 is 12760582
Previous prime number is 43

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

Name	twenty-eight million five hundred six thousand seven hundred twenty-one

Notation

Scientific notation	2.8506721 × 10^7
Engineering notation	2.8506721 × 10^6

Prime Factorization of 28506721

Prime Factorization 43 × 662947

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	28506721	Product of the distinct prime numbers

The prime factorization of 28506721 is 43 × 662947. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 8, 36, 24, 255, 508, 2339, 962, 43884, 18946, 818620, 685915, 5177956, 8143968, 27539741, 28556566, 947094553, 509636807, 8200789391, 552971547

Basic calculations (n = 28506721)

Multiplication

n×y

n×2	57013442
n×3	85520163
n×4	114026884
n×5	142533605

Division

n÷y

n÷2	14253360.5
n÷3	9502240.3333333
n÷3	7126680.25
n÷5	5701344.2

Exponentiation

n^y

n²	812633142171841
n³	2.3165506259246E+22
n⁴	6.6037262375608E+29
n⁵	1.8825058141453E+37

Nth Root

^y√n

²√n	5339.1685682323
³√n	305.47974664899
⁴√n	73.069614534582
⁵√n	30.973440785139

Divisors of 28506721

1, 43, 662947, 28506721

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-28506720	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28506721 can be divided by 4 positive divisors. The sum of these divisors (counting 28506721) is 1, the average is 0.25.

Base conversion 28506721

Base	System	Value
2	Binary	1101100101111101001100001
3	Ternary	1222122021212111
4	Quaternary	1230233221201
5	Quinary	24244203341
6	Senary	2454555321
8	Octal	154575141
10	Decimal	28506721
12	Duodecimal	9668b41
16	Hexadecimal	1b2fa61
20	Vigesimal	8i36g1
36	Base36	gyzxd

Cryptographic Hash Functions

md5	20cbd1e7153e2ff59caa29d114f051bc
sha1	f20037faf59d59e84baf5183a9120878005c3fca
sha256	b2c268e920fd6adc8f7ad934649fafcf51a38f44735839102249db557546ec30
sha512	d54a1c0cd6779a53c622b3bd6d76bf892d03867a4b66ed84d8a044305f5b90e5bf4d3d0ce48e22a32350255be559b223ca598bae5f34edf2a2b01870fa134689
ripemd-160	ed9e41694ebe542056964ddda5705493cd0a16a8

28506721 as geometric shapes

Circle

Radius = n

Diameter	57013442
Circumference	179113010.54307
Area	2.5529623095106E+15

Sphere

Radius = n

Volume	9.7035445707647E+22
Surface area	1.0211849238043E+16
Circumference	179113010.54307

Square

Length = n

Perimeter	114026884
Area	812633142171841
Diagonal	40314591.456986

Cube

Length = n

Surface area	4875798853031046
Volume	2.3165506259246E+22
Space diagonal	49375089.129191

Equilateral Triangle

Length = n

Perimeter	85520163
Area	3.5188047253899E+14
Altitude	24687544.564595

Triangular Pyramid

Length = n

Surface area	3.5188047253899E+14
Volume	2.7300810942554E+21
Height	13438197.152329