28931965 (number)

28931965 is an odd 8-digits composite number following 28931964 and preceding 28931966. In scientific notation, it is written as 2.8931965 × 10^7. The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors. There are 21332160 positive integers (up to 28931965) that are relatively prime to 28931965.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-one thousand nine hundred sixty-five

Notation

Scientific notation 2.8931965 × 10^7
Engineering notation 2.8931965 × 10^6

Prime Factorization of 28931965

Prime Factorization 5 × 37 × 19 × 8231

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28931965
Product of the distinct prime numbers

The prime factorization of 28931965 is 5 × 37 × 19 × 8231. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 5, 100, 58, 34, 614, 4848, 2140, 70355, 35544, 238552, 666303, 1844894, 4487336, 20634095, 12776826, 121128358, 553250643, 1515678318, 5188772773

Basic calculations (n = 28931965)

Multiplication

n×y
n×2 57863930
n×3 86795895
n×4 115727860
n×5 144659825

Division

n÷y
n÷2 14465982.5
n÷3 9643988.3333333
n÷3 7232991.25
n÷5 5786393

Exponentiation

ny
n2 837058598761225
n3 2.4217750082309E+22
n4 7.0066709776011E+29
n5 2.0271675949047E+37

Nth Root

y√n
2√n 5378.8442067046
3√n 306.99123573108
4√n 73.340604079218
5√n 31.06530244807

Divisors of 28931965

1, 5, 19, 37, 95, 185, 703, 3515, 8231, 41155, 156389, 304547, 781945, 1522735, 5786393, 28931965

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 -28931964
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 28931965 can be divided by 16 positive divisors. The sum of these divisors (counting 28931965) is 1, the average is 0.0625.

Base conversion 28931965

Base System Value
2 Binary 1101110010111011101111101
3 Ternary 2000102220012021
4 Quaternary 1232113131331
5 Quinary 24401310330
6 Senary 2512040141
8 Octal 156273575
10 Decimal 28931965
12 Duodecimal 9833051
16 Hexadecimal 1b9777d
20 Vigesimal 90g9i5
36 Base36 h841p

Cryptographic Hash Functions

md5 ad634652936a62ae0567ffd64694e411
sha1 116cec27a62b8378c8ead4a92ca7fcef640a36b1
sha256 763ff8f776d1899d16f82d564d6dd863266723970bd07c1bcd4867d6c0a89061
sha512 d3e9a33bea8672ab3134825510107f27c16ec8f2f6a1e3319d225ef8417288fab79578bc87d6e9522cfd01e6f8263b140ec063f06a8c6888177edbf65b63cb84
ripemd-160 52c2c4ba270d6e6bbd2503f41224e38c2be7562c

28931965 as geometric shapes

Circle

Radius = n
Diameter 57863930
Circumference 181784897.39583
Area 2.6296971444924E+15

Sphere

Radius = n
Volume 1.0144307432674E+23
Surface area 1.051878857797E+16
Circumference 181784897.39583

Square

Length = n
Perimeter 115727860
Area 837058598761225
Diagonal 40915977.289104

Cube

Length = n
Surface area 5022351592567350
Volume 2.4217750082309E+22
Space diagonal 50111633.342804

Equilateral Triangle

Length = n
Perimeter 86795895
Area 3.6245700549171E+14
Altitude 25055816.671402

Triangular Pyramid

Length = n
Surface area 3.6245700549171E+14
Volume 2.8540892180469E+21
Height 13638659.096368