28975981 (number)

28975981 is an odd 8-digits prime number following 28975980 and preceding 28975982. In scientific notation, it is written as 2.8975981 × 10^7. The sum of its digits is 49. It has a total of 1 prime factors and 2 positive divisors. There are 28975980 positive integers (up to 28975981) that are relatively prime to 28975981.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred seventy-five thousand nine hundred eighty-one

Notation

Scientific notation 2.8975981 × 10^7
Engineering notation 2.8975981 × 10^6

Prime Factorization of 28975981

Prime Factorization 28975981

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 28975981
Product of the distinct prime numbers

The prime factorization of 28975981 is 28975981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

9, 5, 44, 65, 563, 49, 6276, 4574, 34526, 78435, 808388, 759180, 9747614, 2763560, 49170668, 30798961, 936689125, 411459285, 5172655128, 6381211832

Basic calculations (n = 28975981)

Multiplication

n×y
n×2 57951962
n×3 86927943
n×4 115903924
n×5 144879905

Division

n÷y
n÷2 14487990.5
n÷3 9658660.3333333
n÷3 7243995.25
n÷5 5795196.2

Exponentiation

ny
n2 839607474912361
n3 2.4328450240519E+22
n4 7.0494071192871E+29
n5 2.0426348674973E+37

Nth Root

y√n
2√n 5382.9342370124
3√n 307.1468384763
4√n 73.368482586274
5√n 31.074749016978

Divisors of 28975981

1, 28975981

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 28975982
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 14487991
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 5382.9343298985
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999309773
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28975981 can be divided by 2 positive divisors. The sum of these divisors (counting 28975981) is 28975982, the average is 14487991.

Base conversion 28975981

Base System Value
2 Binary 1101110100010001101101101
3 Ternary 2000112010120111
4 Quaternary 1232202031231
5 Quinary 24404212411
6 Senary 2513020021
8 Octal 156421555
10 Decimal 28975981
12 Duodecimal 9854611
16 Hexadecimal 1ba236d
20 Vigesimal 911jj1
36 Base36 h920d

Cryptographic Hash Functions

md5 caf31434f75ed415391cfc2a949dd496
sha1 5ae312a05bcc29a61560e1a9dc020a8fdfca01d4
sha256 95a0553ea3ff8727882b34994d47a1bae01e98866dab1c778d61e73d9ea9c392
sha512 c12a45c5154231552be138302916e4acce22ca0546529f42c266151dc6e3a924d1a75d92c8d24f451b5c47f23702325c794206f6b9cb3f1ba79763b8b8c02f62
ripemd-160 67d6fc0719b1aa5232d0b35bb5d47f7d60f2ea32

28975981 as geometric shapes

Circle

Radius = n
Diameter 57951962
Circumference 182061458.08031
Area 2.6377046750838E+15

Sphere

Radius = n
Volume 1.0190677406512E+23
Surface area 1.0550818700335E+16
Circumference 182061458.08031

Square

Length = n
Perimeter 115903924
Area 839607474912361
Diagonal 40978225.313265

Cube

Length = n
Surface area 5037644849474166
Volume 2.4328450240519E+22
Space diagonal 50187871.29115

Equilateral Triangle

Length = n
Perimeter 86927943
Area 3.6356070124071E+14
Altitude 25093935.645575

Triangular Pyramid

Length = n
Surface area 3.6356070124071E+14
Volume 2.867135356805E+21
Height 13659408.437755