91991649 (number)

91991649 is an odd 8-digits composite number following 91991648 and preceding 91991650. In scientific notation, it is written as 9.1991649 × 10^7. The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors. There are 61172496 positive integers (up to 91991649) that are relatively prime to 91991649.

Interesting facts

Basic properties

Name

Name ninety-one million nine hundred ninety-one thousand six hundred forty-nine

Notation

Scientific notation 9.1991649 × 10^7
Engineering notation 9.1991649 × 10^6

Prime Factorization of 91991649

Prime Factorization 3 × 397 × 77239

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 91991649
Product of the distinct prime numbers

The prime factorization of 91991649 is 3 × 397 × 77239. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 91991649)

Multiplication

n×y
n×2 183983298
n×3 275974947
n×4 367966596
n×5 459958245

Division

n÷y
n÷2 45995824.5
n÷3 30663883
n÷3 22997912.25
n÷5 18398329.8

Exponentiation

ny
n2 8462463485739201
n3 7.7847597065544E+23
n4 7.1613288247469E+31
n5 6.587824476197E+39

Nth Root

y√n
2√n 9591.2277107782
3√n 451.42208393157
4√n 97.934813579126
5√n 39.151614947084

Divisors of 91991649

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 -91991648
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 91991649 can be divided by 8 positive divisors. The sum of these divisors (counting 91991649) is 1, the average is 0.125.

Base conversion 91991649

Base System Value
2 Binary 101011110111010111001100001
3 Ternary 20102002122211010
4 Quaternary 11132322321201
5 Quinary 142022213044
6 Senary 13043411133
8 Octal 536727141
10 Decimal 91991649
12 Duodecimal 26983aa9
16 Hexadecimal 57bae61
20 Vigesimal 18eij29
36 Base36 1irp7l

Cryptographic Hash Functions

md5 87f97778679ce351bed2cceec90216d4
sha1 c7796f9ec7c19dcd620e4646e43ecbb5f1446d1a
sha256 9f84d6f9f094634e154c6b3dd51b63e6a8b5d3ac007b56bc7ca23ab3c47a1327
sha512 b8c13a8353f9e825afbe183f575a028cef4567d179a2648081178ae164a6152d13925c354b7490b0435b5a3e9aecac0551fd45244090de4e3b6c79824872152e
ripemd-160 5b4013e9594db6ec791c4622b503ef417c836e31

91991649 as geometric shapes

Circle

Radius = n
Diameter 183983298
Circumference 578000577.38002
Area 2.658561311807E+16

Sphere

Radius = n
Volume 3.2608725205431E+24
Surface area 1.0634245247228E+17
Circumference 578000577.38002

Square

Length = n
Perimeter 367966596
Area 8462463485739201
Diagonal 130095837.64087

Cube

Length = n
Surface area 50774780914435206
Volume 7.7847597065544E+23
Space diagonal 159334209.94004

Equilateral Triangle

Length = n
Perimeter 275974947
Area 3.6643541786242E+15
Altitude 79667104.970021

Triangular Pyramid

Length = n
Surface area 3.6643541786242E+15
Volume 9.174427297354E+22
Height 43365279.213622