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

28491421 (number)

28491421 is an odd 8-digits composite number following 28491420 and preceding 28491422. In scientific notation, it is written as 2.8491421 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 24421212 positive integers (up to 28491421) that are relatively prime to 28491421.

Interesting facts

28491421 has 4 divisors, whose sum is 32561632
The reverse of 28491421 is 12419482
Previous prime number is 7

Basic properties

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

Name

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

Notation

Scientific notation	2.8491421 × 10^7
Engineering notation	2.8491421 × 10^6

Prime Factorization of 28491421

Prime Factorization 7 × 4070203

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	28491421	Product of the distinct prime numbers

The prime factorization of 28491421 is 7 × 4070203. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 10, 11, 32, 358, 795, 9335, 5679, 17841, 36842, 450326, 64648, 7628781, 4117039, 892650, 10256546, 814541285, 105651002, 1325041771, 1598059836

Basic calculations (n = 28491421)

Multiplication

n×y

n×2	56982842
n×3	85474263
n×4	113965684
n×5	142457105

Division

n÷y

n÷2	14245710.5
n÷3	9497140.3333333
n÷3	7122855.25
n÷5	5698284.2

Exponentiation

n^y

n²	811761070599241
n³	2.3128226413854E+22
n⁴	6.5895603574043E+29
n⁵	1.8774593834772E+37

Nth Root

^y√n

²√n	5337.7355685721
³√n	305.42508496006
⁴√n	73.059808161342
⁵√n	30.970115285758

Divisors of 28491421

1, 7, 4070203, 28491421

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	-28491420	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 28491421 can be divided by 4 positive divisors. The sum of these divisors (counting 28491421) is 1, the average is 0.25.

Base conversion 28491421

Base	System	Value
2	Binary	1101100101011111010011101
3	Ternary	1222121111212211
4	Quaternary	1230223322131
5	Quinary	24243211141
6	Senary	2454400421
8	Octal	154537235
10	Decimal	28491421
12	Duodecimal	9660111
16	Hexadecimal	1b2be9d
20	Vigesimal	8i18b1
36	Base36	gyo4d

Cryptographic Hash Functions

md5	013478ecb53501b7d91d94761a2c1f0d
sha1	02e0afd1b781054f6a5e426120e0b694705f4973
sha256	8241b7095e28498ac27eaed3a86069a355340acbe0e5e4a15e105cab9b922870
sha512	63c562d5db5cfce64159448f1c826693e5149d3b0606025fd98beaf770d2c46dfc4d30081ab977972783f2c5576b0aac503be5bfdddfec1c64656c3679e1864a
ripemd-160	f003b76bd9d317b691a233583dfc481c9ea8029c

28491421 as geometric shapes

Circle

Radius = n

Diameter	56982842
Circumference	179016877.80787
Area	2.5502226158648E+15

Sphere

Radius = n

Volume	9.6879288256432E+22
Surface area	1.0200890463459E+16
Circumference	179016877.80787

Square

Length = n

Perimeter	113965684
Area	811761070599241
Diagonal	40292953.989482

Cube

Length = n

Surface area	4870566423595446
Volume	2.3128226413854E+22
Space diagonal	49348588.751835

Equilateral Triangle

Length = n

Perimeter	85474263
Area	3.515028544711E+14
Altitude	24674294.375917

Triangular Pyramid

Length = n

Surface area	3.515028544711E+14
Volume	2.7256876223423E+21
Height	13430984.663161