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

28971921 (number)

28971921 is an odd 8-digits composite number following 28971920 and preceding 28971922. In scientific notation, it is written as 2.8971921 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 17558720 positive integers (up to 28971921) that are relatively prime to 28971921.

Interesting facts

28971921 has 8 divisors, whose sum is 42141024
The reverse of 28971921 is 12917982
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

Name	twenty-eight million nine hundred seventy-one thousand nine hundred twenty-one

Notation

Scientific notation	2.8971921 × 10^7
Engineering notation	2.8971921 × 10^6

Prime Factorization of 28971921

Prime Factorization 3 × 11 × 877937

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	28971921	Product of the distinct prime numbers

The prime factorization of 28971921 is 3 × 11 × 877937. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 9, 43, 31, 874, 51, 5009, 8786, 63800, 2870, 764706, 81350, 3676099, 7548063, 18532305, 89299215, 897124532, 187574262, 6707432685, 2655337655

Basic calculations (n = 28971921)

Multiplication

n×y

n×2	57943842
n×3	86915763
n×4	115887684
n×5	144859605

Division

n÷y

n÷2	14485960.5
n÷3	9657307
n÷3	7242980.25
n÷5	5794384.2

Exponentiation

n^y

n²	839372206430241
n³	2.4318225254293E+22
n⁴	7.0454570092757E+29
n⁵	2.0412042388163E+37

Nth Root

^y√n

²√n	5382.5571060603
³√n	307.13249240565
⁴√n	73.365912425733
⁵√n	31.073878153951

Divisors of 28971921

1, 3, 11, 33, 877937, 2633811, 9657307, 28971921

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-28971920	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28971921 can be divided by 8 positive divisors. The sum of these divisors (counting 28971921) is 1, the average is 0.125.

Base conversion 28971921

Base	System	Value
2	Binary	1101110100001001110010001
3	Ternary	2000111221000010
4	Quaternary	1232201032101
5	Quinary	24404100141
6	Senary	2512545133
8	Octal	156411621
10	Decimal	28971921
12	Duodecimal	98521a9
16	Hexadecimal	1ba1391
20	Vigesimal	9119g1
36	Base36	h8yvl

Cryptographic Hash Functions

md5	ab43066dcefc8964284c64df9c89a750
sha1	0a7586cfb28530749131f75ed747aaa554ef7d55
sha256	ec3c01785cd816eb2b995009f61be43eea7b0faa4d438ac4e0feacd56188074c
sha512	f0f28f9aa586f11da6a6358c78d213042496c610f5679af528b7cfd53f080c09be2713d74e83885e5c979f6e1ff5c42e82b823e4fe9fb75075e1ae79431d287a
ripemd-160	0efca63e000b82c076acbadc516e9fe2bababb04

28971921 as geometric shapes

Circle

Radius = n

Diameter	57943842
Circumference	182035948.34797
Area	2.6369655573487E+15

Sphere

Radius = n

Volume	1.0186394374297E+23
Surface area	1.0547862229395E+16
Circumference	182035948.34797

Square

Length = n

Perimeter	115887684
Area	839372206430241
Diagonal	40972483.606202

Cube

Length = n

Surface area	5036233238581446
Volume	2.4318225254293E+22
Space diagonal	50180839.164872

Equilateral Triangle

Length = n

Perimeter	86915763
Area	3.6345882699959E+14
Altitude	25090419.582436

Triangular Pyramid

Length = n

Surface area	3.6345882699959E+14
Volume	2.865930330622E+21
Height	13657494.535401