91387905 (number)

91387905 is an odd 8-digits composite number following 91387904 and preceding 91387906. In scientific notation, it is written as 9.1387905 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 41465856 positive integers (up to 91387905) that are relatively prime to 91387905.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 9.1387905 × 10^7
Engineering notation 9.1387905 × 10^6

Prime Factorization of 91387905

Prime Factorization 21 × 5 × 137 × 6353

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 91387905
Product of the distinct prime numbers

The prime factorization of 91387905 is 21 × 5 × 137 × 6353. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 1, 26, 70, 971, 823, 5749, 4287, 25665, 93691, 603998, 93623, 5562384, 5278566, 57464380, 41042390, 528971882, 301282800, 2998883390, 7666281358

Basic calculations (n = 91387905)

Multiplication

n×y
n×2 182775810
n×3 274163715
n×4 365551620
n×5 456939525

Division

n÷y
n÷2 45693952.5
n÷3 30462635
n÷3 22846976.25
n÷5 18277581

Exponentiation

ny
n2 8351749180289025
n3 7.6324886067208E+23
n4 6.9751714370458E+31
n5 6.3744630464746E+39

Nth Root

y√n
2√n 9559.7021397113
3√n 450.43234990697
4√n 97.773729292235
5√n 39.100088853252

Divisors of 91387905

1, 5, 21, 105, 137, 685, 2877, 6353, 14385, 31765, 133413, 667065, 870361, 4351805, 18277581, 91387905

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 -91387904
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 91387905 can be divided by 16 positive divisors. The sum of these divisors (counting 91387905) is 1, the average is 0.0625.

Base conversion 91387905

Base System Value
2 Binary 101011100100111100000000001
3 Ternary 20100221222122020
4 Quaternary 11130213200001
5 Quinary 141343403110
6 Senary 13022432053
8 Octal 534474001
10 Decimal 91387905
12 Duodecimal 26732629
16 Hexadecimal 5727801
20 Vigesimal 18b39f5
36 Base36 1iercx

Cryptographic Hash Functions

md5 8ce98eb636ae217ab0e515352c2b6708
sha1 0d34d55f2383654ba2919c9e747c39437fe1c8ed
sha256 9607650118612ed3c107fa66eca0994b13f7f2b9a8f79e6ef77d05c1751f2e12
sha512 bbb9dbe2a50b5c32036bac428f094b102c0d5b963ab480cab4727373154b249691c5ea5f414e60d2bdd7f1f8e7d7df194747d38c1ac86561680fc36f9c224469
ripemd-160 58f068b25a0c2938cf87be21ee51dfbe2f75650e

91387905 as geometric shapes

Circle

Radius = n
Diameter 182775810
Circumference 574207141.94992
Area 2.6237793869421E+16

Sphere

Radius = n
Volume 3.1970893513976E+24
Surface area 1.0495117547768E+17
Circumference 574207141.94992

Square

Length = n
Perimeter 365551620
Area 8351749180289025
Diagonal 129242014.68786

Cube

Length = n
Surface area 50110495081734150
Volume 7.6324886067208E+23
Space diagonal 158288494.65728

Equilateral Triangle

Length = n
Perimeter 274163715
Area 3.6164134780831E+15
Altitude 79144247.328639

Triangular Pyramid

Length = n
Surface area 3.6164134780831E+15
Volume 8.9949740852356E+22
Height 43080671.562621