91991031 (number)

91991031 is an odd 8-digits composite number following 91991030 and preceding 91991032. In scientific notation, it is written as 9.1991031 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 55610720 positive integers (up to 91991031) that are relatively prime to 91991031.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 9.1991031 × 10^7
Engineering notation 9.1991031 × 10^6

Prime Factorization of 91991031

Prime Factorization 3 × 11 × 419 × 6653

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 91991031
Product of the distinct prime numbers

The prime factorization of 91991031 is 3 × 11 × 419 × 6653. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 10, 85, 42, 529, 781, 8870, 7597, 26588, 31312, 749733, 840678, 8416178, 9172126, 10992169, 31314299, 997497518, 718921356, 2571442319, 3273661878

Basic calculations (n = 91991031)

Multiplication

n×y
n×2 183982062
n×3 275973093
n×4 367964124
n×5 459955155

Division

n÷y
n÷2 45995515.5
n÷3 30663677
n÷3 22997757.75
n÷5 18398206.2

Exponentiation

ny
n2 8462349784442961
n3 7.7846028135354E+23
n4 7.1611363874262E+31
n5 6.5876031941095E+39

Nth Root

y√n
2√n 9591.1954937849
3√n 451.42107304462
4√n 97.934649097165
5√n 39.151562342824

Divisors of 91991031

1, 3, 11, 33, 419, 1257, 4609, 6653, 13827, 19959, 73183, 219549, 2787607, 8362821, 30663677, 91991031

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 -91991030
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 91991031 can be divided by 16 positive divisors. The sum of these divisors (counting 91991031) is 1, the average is 0.0625.

Base conversion 91991031

Base System Value
2 Binary 101011110111010101111110111
3 Ternary 20102002121222020
4 Quaternary 11132322233313
5 Quinary 142022203111
6 Senary 13043404223
8 Octal 536725767
10 Decimal 91991031
12 Duodecimal 26983673
16 Hexadecimal 57babf7
20 Vigesimal 18eihbb
36 Base36 1iroqf

Cryptographic Hash Functions

md5 f1742e88bea0977a9d80288157e53a81
sha1 fbc85806262f22a10f14d3e7cbeea80d610f9cec
sha256 db19258aef18ccde09a636bb848c8553d202b4bf4de5e42616cdf0c9a88b658d
sha512 7783cdce54b74cfd88346c3d8bfa1359533aea1dec8931a1b8784ba8ae9809185b49ca2c95847e7857dc9521d7c02e9a4c8f41a9051fa636c41b761e4ddbe48a
ripemd-160 29361b5bc0bbb4f2739bddf1ddbccbf2147557f7

91991031 as geometric shapes

Circle

Radius = n
Diameter 183982062
Circumference 577996694.3715
Area 2.6585255914913E+16

Sphere

Radius = n
Volume 3.2608068013489E+24
Surface area 1.0634102365965E+17
Circumference 577996694.3715

Square

Length = n
Perimeter 367964124
Area 8462349784442961
Diagonal 130094963.65688

Cube

Length = n
Surface area 50774098706657766
Volume 7.7846028135354E+23
Space diagonal 159333139.53264

Equilateral Triangle

Length = n
Perimeter 275973093
Area 3.6643049445187E+15
Altitude 79666569.766322

Triangular Pyramid

Length = n
Surface area 3.6643049445187E+15
Volume 9.1742423971579E+22
Height 43364987.885628