28697688 (number)

28697688 is an even 8-digits composite number following 28697687 and preceding 28697689. In scientific notation, it is written as 2.8697688 × 10^7. The sum of its digits is 54. It has a total of 6 prime factors and 32 positive divisors. There are 9515520 positive integers (up to 28697688) that are relatively prime to 28697688.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred ninety-seven thousand six hundred eighty-eight

Notation

Scientific notation 2.8697688 × 10^7
Engineering notation 2.8697688 × 10^6

Prime Factorization of 28697688

Prime Factorization 2 × 2 × 2 × 9 × 211 × 1889

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 7174422
Product of the distinct prime numbers

The prime factorization of 28697688 is 2 × 2 × 2 × 9 × 211 × 1889. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 4, 29, 80, 93, 574, 5359, 8958, 19821, 68408, 192079, 532126, 5764040, 1338165, 30299085, 81906503, 754108785, 545042440, 7715085009, 2313611444

Basic calculations (n = 28697688)

Multiplication

n×y
n×2 57395376
n×3 86093064
n×4 114790752
n×5 143488440

Division

n÷y
n÷2 14348844
n÷3 9565896
n÷3 7174422
n÷5 5739537.6

Exponentiation

ny
n2 823557296545344
n3 2.3634190346382E+22
n4 6.7824662069308E+29
n5 1.9464109907704E+37

Nth Root

y√n
2√n 5357.0223072151
3√n 306.16036704945
4√n 73.191681953724
5√n 31.014828350242

Divisors of 28697688

1, 2, 4, 8, 9, 18, 36, 72, 211, 422, 844, 1688, 1889, 1899, 3778, 3798, 7556, 7596, 15112, 15192, 17001, 34002, 68004, 136008, 398579, 797158, 1594316, 3188632, 3587211, 7174422, 14348844, 28697688

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28697687
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28697688 can be divided by 32 positive divisors. The sum of these divisors (counting 28697688) is 1, the average is 0.03125.

Base conversion 28697688

Base System Value
2 Binary 1101101011110010001011000
3 Ternary 1222222222211100
4 Quaternary 1231132101120
5 Quinary 24321311223
6 Senary 2503031400
8 Octal 155362130
10 Decimal 28697688
12 Duodecimal 973b560
16 Hexadecimal 1b5e458
20 Vigesimal 8j7448
36 Base36 h33a0

Cryptographic Hash Functions

md5 e1fcd39d15e62cf388bb8cb855d22f60
sha1 6679d00842c32b355d899450faba56bfdc652b35
sha256 2d8012486bd52069c33b528e462db6deca2650c5f7dc987621716f1b7f1c3dae
sha512 04bef4ed5412f37d509f494da913eedbe74ab33f5342972a72c8f002b32f14edab7b1c97c76a850cc6747a92bc423a3991205bd93ec456fc8b54a27184e2fb2e
ripemd-160 2b4a33659e8761a1a2cbc8388e90eefad6bbe3b7

28697688 as geometric shapes

Circle

Radius = n
Diameter 57395376
Circumference 180312891.59162
Area 2.5872815526371E+15

Sphere

Radius = n
Volume 9.8998665020981E+22
Surface area 1.0349126210548E+16
Circumference 180312891.59162

Square

Length = n
Perimeter 114790752
Area 823557296545344
Diagonal 40584659.578352

Cube

Length = n
Surface area 4941343779272064
Volume 2.3634190346382E+22
Space diagonal 49705853.67576

Equilateral Triangle

Length = n
Perimeter 86093064
Area 3.5661077014015E+14
Altitude 24852926.83788

Triangular Pyramid

Length = n
Surface area 3.5661077014015E+14
Volume 2.78531604363E+21
Height 13528219.859451