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

38991 (number)

38991 is an odd 5-digits composite number following 38990 and preceding 38992. In scientific notation, it is written as 3.8991 × 10^4. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 25280 positive integers (up to 38991) that are relatively prime to 38991.

Interesting facts

38991 has 8 divisors, whose sum is 53424
The reverse of 38991 is 19983
Previous prime number is 41

Basic properties

Is Prime? no
Number parity odd
Number length 5
Sum of Digits 30
Digital Root 3

Name

Name	thirty-eight thousand nine hundred ninety-one

Notation

Scientific notation	3.8991 × 10^4
Engineering notation	3.8991 × 10^3

Prime Factorization of 38991

Prime Factorization 3 × 41 × 317

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	38991	Product of the distinct prime numbers

The prime factorization of 38991 is 3 × 41 × 317. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 10, 85, 24, 629, 545, 9510, 6541, 27845, 76237, 900429, 557919, 4046143, 4922934, 98866191, 66096986, 40723985, 918453685, 315384315, 907769978

Basic calculations (n = 38991)

Multiplication

n×y

n×2	77982
n×3	116973
n×4	155964
n×5	194955

Division

n÷y

n÷2	19495.5
n÷3	12997
n÷3	9747.75
n÷5	7798.2

Exponentiation

n^y

n²	1520298081
n³	59277942476271
n⁴	2311306255092282561
n⁵	9.0120142192303E+22

Nth Root

^y√n

²√n	197.46138863079
³√n	33.909505605266
⁴√n	14.05209552454
⁵√n	8.2830994316655

Divisors of 38991

1, 3, 41, 123, 317, 951, 12997, 38991

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	-38990	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 38991 can be divided by 8 positive divisors. The sum of these divisors (counting 38991) is 1, the average is 0.125.

Base conversion 38991

Base	System	Value
2	Binary	1001100001001111
3	Ternary	1222111010
4	Quaternary	21201033
5	Quinary	2221431
6	Senary	500303
8	Octal	114117
10	Decimal	38991
12	Duodecimal	1a693
16	Hexadecimal	984f
20	Vigesimal	4h9b
36	Base36	u33

Cryptographic Hash Functions

md5	83bc0f331844906bb0365db10e40f714
sha1	c2fb4981521dc83bef7253e5f6d6aa1b81cfba97
sha256	24afd184b872cd60b103077b875ee35cea21913c13cb30b54c20e08aa1c086b4
sha512	c9f5fecb3094fc0bd39ba295f7b3b00ac14139fb4cead91dc7bce29b9089cc0628b0db37f2eaf11b91dfe1e206ae8460e58d67686ca6142db3087f7ee573914c
ripemd-160	e0e4da762b58c0d1fd13ea983bc09fc51cc97b61

38991 as geometric shapes

Circle

Radius = n

Diameter	77982
Circumference	244987.67831224
Area	4776157282.5363

Sphere

Radius = n

Volume	2.483028648045E+14
Surface area	19104629130.145
Circumference	244987.67831224

Square

Length = n

Perimeter	155964
Area	1520298081
Diagonal	55141.601010489

Cube

Length = n

Surface area	9121788486
Volume	59277942476271
Space diagonal	67534.393037918

Equilateral Triangle

Length = n

Perimeter	116973
Area	658308379.73537
Altitude	33767.196518959

Triangular Pyramid

Length = n

Surface area	658308379.73537
Volume	6985972516626.2
Height	18380.533670163