91991385 (number)

91991385 is an odd 8-digits composite number following 91991384 and preceding 91991386. In scientific notation, it is written as 9.1991385 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 48961440 positive integers (up to 91991385) that are relatively prime to 91991385.

Interesting facts

Basic properties

Name

Name ninety-one million nine hundred ninety-one thousand three hundred eighty-five

Notation

Scientific notation 9.1991385 × 10^7
Engineering notation 9.1991385 × 10^6

Prime Factorization of 91991385

Prime Factorization 5 × 9 × 563 × 3631

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 91991385
Product of the distinct prime numbers

The prime factorization of 91991385 is 5 × 9 × 563 × 3631. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 9, 95, 41, 153, 298, 3742, 9577, 86198, 82266, 834272, 487784, 6553084, 9831901, 50652283, 43690409, 574449042, 694137780, 7454538942, 4409828641

Basic calculations (n = 91991385)

Multiplication

n×y
n×2 183982770
n×3 275974155
n×4 367965540
n×5 459956925

Division

n÷y
n÷2 45995692.5
n÷3 30663795
n÷3 22997846.25
n÷5 18398277

Exponentiation

ny
n2 8462414914218225
n3 7.7846926840359E+23
n4 7.1612466180383E+31
n5 6.5877299471991E+39

Nth Root

y√n
2√n 9591.2139481924
3√n 451.42165209693
4√n 97.934743315089
5√n 39.151592475396

Divisors of 91991385

1, 5, 9, 45, 563, 2815, 3631, 5067, 18155, 25335, 32679, 163395, 2044253, 10221265, 18398277, 91991385

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -91991384
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 91991385 can be divided by 16 positive divisors. The sum of these divisors (counting 91991385) is 1, the average is 0.0625.

Base conversion 91991385

Base System Value
2 Binary 101011110111010110101011001
3 Ternary 20102002122110100
4 Quaternary 11132322311121
5 Quinary 142022211020
6 Senary 13043410013
8 Octal 536726531
10 Decimal 91991385
12 Duodecimal 26983909
16 Hexadecimal 57bad59
20 Vigesimal 18eii95
36 Base36 1irp09

Cryptographic Hash Functions

md5 61e24aea9bee18a31bb49148e0d63189
sha1 ddd5ce9e052cbcedda7f33e1447e4c05b157c6e3
sha256 98911eb7f0c821017af51d0437b58a273ad4eff45cb37a5f3e4d5340f45a3d40
sha512 fab5414f0853800b4a8d2611080e31082a1d575d2dd4be6362c2c3385d2dff5f1d10823fac282d125f88cee72d4097e941d9372a5a3bdc8779443c98aab70063
ripemd-160 5b43c48850e56af565a5682b546dc07ee74edb29

91991385 as geometric shapes

Circle

Radius = n
Diameter 183982770
Circumference 577998918.6191
Area 2.6585460526137E+16

Sphere

Radius = n
Volume 3.2608444462162E+24
Surface area 1.0634184210455E+17
Circumference 577998918.6191

Square

Length = n
Perimeter 367965540
Area 8462414914218225
Diagonal 130095464.28848

Cube

Length = n
Surface area 50774489485309350
Volume 7.7846926840359E+23
Space diagonal 159333752.67863

Equilateral Triangle

Length = n
Perimeter 275974155
Area 3.6643331465386E+15
Altitude 79666876.339315

Triangular Pyramid

Length = n
Surface area 3.6643331465386E+15
Volume 9.1743483105585E+22
Height 43365154.762828