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

83991 (number)

83991 is an odd 5-digits composite number following 83990 and preceding 83992. In scientific notation, it is written as 8.3991 × 10^4. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 55992 positive integers (up to 83991) that are relatively prime to 83991.

Interesting facts

83991 has 4 divisors, whose sum is 111992
The reverse of 83991 is 19938
Previous prime number is 3

Basic properties

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

Name

Name	eighty-three thousand nine hundred ninety-one

Notation

Scientific notation	8.3991 × 10^4
Engineering notation	8.3991 × 10^3

Prime Factorization of 83991

Prime Factorization 3 × 27997

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	83991	Product of the distinct prime numbers

The prime factorization of 83991 is 3 × 27997. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 7, 78, 28, 884, 351, 2079, 4558, 95752, 27237, 894240, 595778, 7966561, 4450605, 43272433, 5061525, 321651053, 495523344, 5931691176, 1589142683

Basic calculations (n = 83991)

Multiplication

n×y

n×2	167982
n×3	251973
n×4	335964
n×5	419955

Division

n÷y

n÷2	41995.5
n÷3	27997
n÷3	20997.75
n÷5	16798.2

Exponentiation

n^y

n²	7054488081
n³	592513508411271
n⁴	4.9765802084971E+19
n⁵	4.1798794829188E+24

Nth Root

^y√n

²√n	289.81200803279
³√n	43.793627229036
⁴√n	17.023865836901
⁵√n	9.6570960379987

Divisors of 83991

1, 3, 27997, 83991

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	-83990	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 83991 can be divided by 4 positive divisors. The sum of these divisors (counting 83991) is 1, the average is 0.25.

Base conversion 83991

Base	System	Value
2	Binary	10100100000010111
3	Ternary	11021012210
4	Quaternary	110200113
5	Quinary	10141431
6	Senary	1444503
8	Octal	244027
10	Decimal	83991
12	Duodecimal	40733
16	Hexadecimal	14817
20	Vigesimal	a9jb
36	Base36	1st3

Cryptographic Hash Functions

md5	d3714cdad51fd8700d5010ce2d9c56c6
sha1	5f1be1e6265debc3998ea2484a735bbb7383fdac
sha256	3b48e4a38593eda2d510e24289a923e7276a0b7240bb3bc22272442564d79f2c
sha512	3a2137be43d45940860cc77a3d39459cf9dfbfb9eaab12e8923b0ceb61a44c3d7b97a6511f39627391bcd1ab76f757b40e247baba2a95b14f7f0a442ba213e84
ripemd-160	115984a636645f34e180bc9cf25a2ab5f2b2dc6a

83991 as geometric shapes

Circle

Radius = n

Diameter	167982
Circumference	527731.01713532
Area	22162327930.106

Sphere

Radius = n

Volume	2.4819147802368E+15
Surface area	88649311720.425
Circumference	527731.01713532

Square

Length = n

Perimeter	335964
Area	7054488081
Diagonal	118781.21131728

Cube

Length = n

Surface area	42326928486
Volume	592513508411271
Space diagonal	145476.67937852

Equilateral Triangle

Length = n

Perimeter	251973
Area	3054682944.4203
Altitude	72738.339689259

Triangular Pyramid

Length = n

Surface area	3054682944.4203
Volume	69828386623707
Height	39593.73710576