28932981 (number)

28932981 is an odd 8-digits composite number following 28932980 and preceding 28932982. In scientific notation, it is written as 2.8932981 × 10^7. The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors. There are 14488320 positive integers (up to 28932981) that are relatively prime to 28932981.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-two thousand nine hundred eighty-one

Notation

Scientific notation 2.8932981 × 10^7
Engineering notation 2.8932981 × 10^6

Prime Factorization of 28932981

Prime Factorization 3 × 29 × 77 × 7 × 617

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 28932981
Product of the distinct prime numbers

The prime factorization of 28932981 is 3 × 29 × 77 × 7 × 617. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 10, 18, 94, 263, 793, 1569, 6943, 20052, 62957, 592179, 28047, 5296970, 3164185, 3944217, 45654655, 271932885, 977036764, 6894392135, 5378947540

Basic calculations (n = 28932981)

Multiplication

n×y
n×2 57865962
n×3 86798943
n×4 115731924
n×5 144664905

Division

n÷y
n÷2 14466490.5
n÷3 9644327
n÷3 7233245.25
n÷5 5786596.2

Exponentiation

ny
n2 837117389546361
n3 2.4220301526514E+22
n4 7.0076552388091E+29
n5 2.0275235587902E+37

Nth Root

y√n
2√n 5378.9386499569
3√n 306.9948292126
4√n 73.34124794382
5√n 31.065520628231

Divisors of 28932981

1, 3, 7, 21, 29, 77, 87, 203, 231, 539, 609, 617, 1617, 1851, 2233, 4319, 6699, 12957, 15631, 17893, 46893, 47509, 53679, 125251, 142527, 332563, 375753, 997689, 1377761, 4133283, 9644327, 28932981

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 -28932980
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 28932981 can be divided by 32 positive divisors. The sum of these divisors (counting 28932981) is 1, the average is 0.03125.

Base conversion 28932981

Base System Value
2 Binary 1101110010111101101110101
3 Ternary 2000102221120220
4 Quaternary 1232113231311
5 Quinary 24401323411
6 Senary 2512044553
8 Octal 156275565
10 Decimal 28932981
12 Duodecimal 9833759
16 Hexadecimal 1b97b75
20 Vigesimal 90gc91
36 Base36 h84tx

Cryptographic Hash Functions

md5 77b3c88f5b1705b08cec03eccc47fdc8
sha1 043273037a007869dde5eeb1cb7f823797d8afa3
sha256 8919e521016857a539bf79319788711e6a739b709b060cf3c2d639b2b12009e5
sha512 40883ea32693c4b4ce8259f731309dc07872e57402a7bfc51171a5f65677914956fdb4911bad9f4e06075dfcd6968657637ad0c2499141d2bc8e224c115344b5
ripemd-160 5a580a42437d1447412aa0b84c7eef2fd2632d41

28932981 as geometric shapes

Circle

Radius = n
Diameter 57865962
Circumference 181791281.11211
Area 2.6298818411911E+15

Sphere

Radius = n
Volume 1.0145376179124E+23
Surface area 1.0519527364764E+16
Circumference 181791281.11211

Square

Length = n
Perimeter 115731924
Area 837117389546361
Diagonal 40917414.130083

Cube

Length = n
Surface area 5022704337278166
Volume 2.4220301526514E+22
Space diagonal 50113393.106425

Equilateral Triangle

Length = n
Perimeter 86798943
Area 3.6248246264843E+14
Altitude 25056696.553212

Triangular Pyramid

Length = n
Surface area 3.6248246264843E+14
Volume 2.8543899086302E+21
Height 13639138.043361