91991405 (number)

91991405 is an odd 8-digits composite number following 91991404 and preceding 91991406. In scientific notation, it is written as 9.1991405 × 10^7. The sum of its digits is 38. It has a total of 5 prime factors and 32 positive divisors. There are 64512000 positive integers (up to 91991405) that are relatively prime to 91991405.

Interesting facts

Basic properties

Name

Name ninety-one million nine hundred ninety-one thousand four hundred five

Notation

Scientific notation 9.1991405 × 10^7
Engineering notation 9.1991405 × 10^6

Prime Factorization of 91991405

Prime Factorization 43 × 5 × 11 × 97 × 401

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 91991405
Product of the distinct prime numbers

The prime factorization of 91991405 is 43 × 5 × 11 × 97 × 401. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 4, 17, 34, 29, 63, 3949, 7806, 51001, 33783, 329791, 872788, 5134458, 3101951, 86666333, 92156022, 135617116, 549525996, 1705803676, 9439371692

Basic calculations (n = 91991405)

Multiplication

n×y
n×2 183982810
n×3 275974215
n×4 367965620
n×5 459957025

Division

n÷y
n÷2 45995702.5
n÷3 30663801.666667
n÷3 22997851.25
n÷5 18398281

Exponentiation

ny
n2 8462418593874025
n3 7.784697761486E+23
n4 7.1612528457945E+31
n5 6.5877371084488E+39

Nth Root

y√n
2√n 9591.2149908132
3√n 451.4216848117
4√n 97.934748638127
5√n 39.151594177798

Divisors of 91991405

1, 5, 11, 43, 55, 97, 215, 401, 473, 485, 1067, 2005, 2365, 4171, 4411, 5335, 17243, 20855, 22055, 38897, 45881, 86215, 189673, 194485, 229405, 427867, 948365, 1672571, 2139335, 8362855, 18398281, 91991405

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -91991404
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 91991405 can be divided by 32 positive divisors. The sum of these divisors (counting 91991405) is 1, the average is 0.03125.

Base conversion 91991405

Base System Value
2 Binary 101011110111010110101101101
3 Ternary 20102002122111002
4 Quaternary 11132322311231
5 Quinary 142022211110
6 Senary 13043410045
8 Octal 536726555
10 Decimal 91991405
12 Duodecimal 26983925
16 Hexadecimal 57bad6d
20 Vigesimal 18eiia5
36 Base36 1irp0t

Cryptographic Hash Functions

md5 8c80a651683b7fa68538b445f7d81b92
sha1 4bfeda6bf054b53fce76aed6a0f7018152269b4b
sha256 ab64413556cc3b9437d4d132e2717b394bd04a7332368b75e91a7b010f700a42
sha512 8018e5c39795a8b85409a8c8457e753e5d2e241179da1dd915e11334512764b41a36ae22363ec5c318fc85e726960a8d55eef6549b1486fc88fcb525ea2b3661
ripemd-160 55709d4d5d9bba63e0d7891b59581d3b1982df97

91991405 as geometric shapes

Circle

Radius = n
Diameter 183982810
Circumference 577999044.28281
Area 2.6585472086116E+16

Sphere

Radius = n
Volume 3.2608465730535E+24
Surface area 1.0634188834447E+17
Circumference 577999044.28281

Square

Length = n
Perimeter 367965620
Area 8462418593874025
Diagonal 130095492.57276

Cube

Length = n
Surface area 50774511563244150
Volume 7.784697761486E+23
Space diagonal 159333787.31965

Equilateral Triangle

Length = n
Perimeter 275974215
Area 3.6643347398763E+15
Altitude 79666893.659823

Triangular Pyramid

Length = n
Surface area 3.6643347398763E+15
Volume 9.1743542943908E+22
Height 43365164.190919