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

91991 (number)

91991 is an odd 5-digits composite number following 91990 and preceding 91992. In scientific notation, it is written as 9.1991 × 10^4. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 90552 positive integers (up to 91991) that are relatively prime to 91991.

Interesting facts

91991 has 4 divisors, whose sum is 93432
The reverse of 91991 is 19919
Previous prime number is 67

Basic properties

Is Prime? no
Number parity odd
Number length 5
Sum of Digits 29
Digital Root 2

Name

Name	ninety-one thousand nine hundred ninety-one

Notation

Scientific notation	9.1991 × 10^4
Engineering notation	9.1991 × 10^3

Prime Factorization of 91991

Prime Factorization 67 × 1373

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	91991	Product of the distinct prime numbers

The prime factorization of 91991 is 67 × 1373. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 6, 43, 11, 197, 606, 9532, 4150, 43268, 89629, 555905, 964428, 2037505, 2270614, 83003508, 4700486, 879929558, 685302486, 2473525653, 1988540688

Basic calculations (n = 91991)

Multiplication

n×y

n×2	183982
n×3	275973
n×4	367964
n×5	459955

Division

n÷y

n÷2	45995.5
n÷3	30663.666666667
n÷3	22997.75
n÷5	18398.2

Exponentiation

n^y

n²	8462344081
n³	778459494355271
n⁴	7.1611267345236E+19
n⁵	6.5875920943556E+24

Nth Root

^y√n

²√n	303.30018133855
³√n	45.142102233658
⁴√n	17.415515534676
⁵√n	9.8344271593144

Divisors of 91991

1, 67, 1373, 91991

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	-91990	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 91991 can be divided by 4 positive divisors. The sum of these divisors (counting 91991) is 1, the average is 0.25.

Base conversion 91991

Base	System	Value
2	Binary	10110011101010111
3	Ternary	11200012002
4	Quaternary	112131113
5	Quinary	10420431
6	Senary	1545515
8	Octal	263527
10	Decimal	91991
12	Duodecimal	4529b
16	Hexadecimal	16757
20	Vigesimal	b9jb
36	Base36	1yzb

Cryptographic Hash Functions

md5	600a51b7602a94be94712bbf272284a2
sha1	779961876e4c9bfa90474a339e0057d5c4c4292c
sha256	a9764af09a1ec12099e57f934559c782afeaf19d11928db9b02a53079da11d2c
sha512	1524ab196707051b65235bb56aa846fddbbb1ddff705771532d557d47b2d38f7df04c544bd3aed5886352d6c62a1655f8ee43c45006a80ff27c2977bac35be33
ripemd-160	0d916213c0451cf34b61cdd8dad55d7e3d0cb72b

91991 as geometric shapes

Circle

Radius = n

Diameter	183982
Circumference	577996.49959276
Area	26585237997.019

Sphere

Radius = n

Volume	3.2608035047783E+15
Surface area	106340951988.07
Circumference	577996.49959276

Square

Length = n

Perimeter	367964
Area	8462344081
Diagonal	130094.91981626

Cube

Length = n

Surface area	50774064486
Volume	778459494355271
Space diagonal	159333.08583907

Equilateral Triangle

Length = n

Perimeter	275973
Area	3664302474.8554
Altitude	79666.542919534

Triangular Pyramid

Length = n

Surface area	3664302474.8554
Volume	91742331222944
Height	43364.973272088