91991431 (number)

91991431 is an odd 8-digits composite number following 91991430 and preceding 91991432. In scientific notation, it is written as 9.1991431 × 10^7. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 78112248 positive integers (up to 91991431) that are relatively prime to 91991431.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 9.1991431 × 10^7
Engineering notation 9.1991431 × 10^6

Prime Factorization of 91991431

Prime Factorization 7 × 107 × 122819

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 91991431
Product of the distinct prime numbers

The prime factorization of 91991431 is 7 × 107 × 122819. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 91991431)

Multiplication

n×y
n×2 183982862
n×3 275974293
n×4 367965724
n×5 459957155

Division

n÷y
n÷2 45995715.5
n÷3 30663810.333333
n÷3 22997857.75
n÷5 18398286.2

Exponentiation

ny
n2 8462423377427761
n3 7.7847043621743E+23
n4 7.1612609418836E+31
n5 6.5877464180828E+39

Nth Root

y√n
2√n 9591.2163462201
3√n 451.4217273409
4√n 97.934755558076
5√n 39.151596390921

Divisors of 91991431

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 -91991430
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 91991431 can be divided by 8 positive divisors. The sum of these divisors (counting 91991431) is 1, the average is 0.125.

Base conversion 91991431

Base System Value
2 Binary 101011110111010110110000111
3 Ternary 20102002122112001
4 Quaternary 11132322312013
5 Quinary 142022211211
6 Senary 13043410131
8 Octal 536726607
10 Decimal 91991431
12 Duodecimal 26983947
16 Hexadecimal 57bad87
20 Vigesimal 18eiibb
36 Base36 1irp1j

Cryptographic Hash Functions

md5 c8c7ec7359b315f3beb01b9915eccce5
sha1 73760fa250ae52281f9b54bf9466e6732e15fd46
sha256 80f8d016dabdae7c9fa33d66e973430215d0439a587a1259a32f9f6f3a5923af
sha512 3047f521923e2976a9efced7083a26fa91bb8cf8f7cbff9925c442d3b04518cfb11c442a15c7a18b330e98e0489f7feb2afad15ed593278c3158a66b2f98aa69
ripemd-160 2b58a7eaa51fde15777c7459b5da86d911df7213

91991431 as geometric shapes

Circle

Radius = n
Diameter 183982862
Circumference 577999207.64562
Area 2.6585487114094E+16

Sphere

Radius = n
Volume 3.2608493379434E+24
Surface area 1.0634194845637E+17
Circumference 577999207.64562

Square

Length = n
Perimeter 367965724
Area 8462423377427761
Diagonal 130095529.34231

Cube

Length = n
Surface area 50774540264566566
Volume 7.7847043621743E+23
Space diagonal 159333832.35297

Equilateral Triangle

Length = n
Perimeter 275974293
Area 3.6643368112159E+15
Altitude 79666916.176483

Triangular Pyramid

Length = n
Surface area 3.6643368112159E+15
Volume 9.1743620733766E+22
Height 43365176.447436