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

28991738 (number)

28991738 is an even 8-digits composite number following 28991737 and preceding 28991739. In scientific notation, it is written as 2.8991738 × 10^7. The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors. There are 14495868 positive integers (up to 28991738) that are relatively prime to 28991738.

Interesting facts

28991738 has 4 divisors, whose sum is 43487610
The reverse of 28991738 is 83719982
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2

Name

Name	twenty-eight million nine hundred ninety-one thousand seven hundred thirty-eight

Notation

Scientific notation	2.8991738 × 10^7
Engineering notation	2.8991738 × 10^6

Prime Factorization of 28991738

Prime Factorization 2 × 14495869

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	28991738	Product of the distinct prime numbers

The prime factorization of 28991738 is 2 × 14495869. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 1, 1, 59, 182, 480, 3177, 4815, 47410, 77206, 570030, 445543, 2268430, 4212092, 49134118, 12539023, 797445403, 857134550, 4002623128, 247935414

Basic calculations (n = 28991738)

Multiplication

n×y

n×2	57983476
n×3	86975214
n×4	115966952
n×5	144958690

Division

n÷y

n÷2	14495869
n÷3	9663912.6666667
n÷3	7247934.5
n÷5	5798347.6

Exponentiation

n^y

n²	840520872260644
n³	2.4368160912112E+22
n⁴	7.0647533670579E+29
n⁵	2.0481947865236E+37

Nth Root

^y√n

²√n	5384.3976450481
³√n	307.20250338174
⁴√n	73.378454910472
⁵√n	31.078127942084

Divisors of 28991738

1, 2, 14495869, 28991738

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	-28991737	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 28991738 can be divided by 4 positive divisors. The sum of these divisors (counting 28991738) is 1, the average is 0.25.

Base conversion 28991738

Base	System	Value
2	Binary	1101110100110000011111010
3	Ternary	2000112221012002
4	Quaternary	1232212003322
5	Quinary	24410213423
6	Senary	2513221002
8	Octal	156460372
10	Decimal	28991738
12	Duodecimal	9861762
16	Hexadecimal	1ba60fa
20	Vigesimal	913j6i
36	Base36	h9e62

Cryptographic Hash Functions

md5	e6ed9f2d8c2f9e261bacf2e3028656a0
sha1	2615e7e5d55dd6769c430efea34380e1059c5cc1
sha256	4f220d3ec9a8559c275d7e4a625c3d036d87018ec8b2a4fda95b7f0580916a0d
sha512	2f0f66c69680bd414672018b55fb64c4100eeab242eecc0f76bdc2d5a27806dae575652774b354dfc9168a4970698c106c9d8245baa7e53c39656c0892d3af7a
ripemd-160	c6719b686d5b32d264eb0543dbfba0e6899397f8

28991738 as geometric shapes

Circle

Radius = n

Diameter	57983476
Circumference	182160462.2312
Area	2.6405741974829E+15

Sphere

Radius = n

Volume	1.0207311373731E+23
Surface area	1.0562296789932E+16
Circumference	182160462.2312

Square

Length = n

Perimeter	115966952
Area	840520872260644
Diagonal	41000509.076367

Cube

Length = n

Surface area	5043125233563864
Volume	2.4368160912112E+22
Space diagonal	50215163.215725

Equilateral Triangle

Length = n

Perimeter	86975214
Area	3.6395621389439E+14
Altitude	25107581.607863

Triangular Pyramid

Length = n

Surface area	3.6395621389439E+14
Volume	2.8718153043332E+21
Height	13666836.358789