2947981 (number)

2947981 is an odd 7-digits composite number following 2947980 and preceding 2947982. In scientific notation, it is written as 2.947981 × 10^6. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 2885212 positive integers (up to 2947981) that are relatively prime to 2947981.

Interesting facts

Basic properties

Name

Name two million nine hundred forty-seven thousand nine hundred eighty-one

Notation

Scientific notation 2.947981 × 10^6
Engineering notation 2.947981 × 10^6

Prime Factorization of 2947981

Prime Factorization 47 × 62723

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 2947981
Product of the distinct prime numbers

The prime factorization of 2947981 is 47 × 62723. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 2947981)

Multiplication

n×y
n×2 5895962
n×3 8843943
n×4 11791924
n×5 14739905

Division

n÷y
n÷2 1473990.5
n÷3 982660.33333333
n÷3 736995.25
n÷5 589596.2

Exponentiation

ny
n2 8690591976361
n3 2.5619700025065E+19
n4 7.552638889959E+25
n5 2.226503594746E+32

Nth Root

y√n
2√n 1716.9685495081
3√n 143.38648770699
4√n 41.43631920801
5√n 19.674555805316

Divisors of 2947981

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -2947980
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 2947981 can be divided by 4 positive divisors. The sum of these divisors (counting 2947981) is 1, the average is 0.25.

Base conversion 2947981

Base System Value
2 Binary 1011001111101110001101
3 Ternary 12112202212111
4 Quaternary 23033232031
5 Quinary 1223313411
6 Senary 143104021
8 Octal 13175615
10 Decimal 2947981
12 Duodecimal ba2011
16 Hexadecimal 2cfb8d
20 Vigesimal i89j1
36 Base36 1r6od

Cryptographic Hash Functions

md5 533858e51ed82e3633dba5db0866d452
sha1 789fd4de41f16b1f7cfdca55d6eb87d88916e988
sha256 f35a0ecc22df02cb737754699b71503a862d11edfb96c40b2e8fea12d3ed8de8
sha512 0b1ef48a405d86209abc65fd836984e863af8ff7e1f559b71ca4125ac60f7161f85b71dbc7bea084e46ceebfe74a6f77cce008f0fd763c98979fc131058b0446
ripemd-160 55e1019bdbc4555daef9eae7201c3a6b93683947

2947981 as geometric shapes

Circle

Radius = n
Diameter 5895962
Circumference 18522710.905045
Area 27302299908282

Sphere

Radius = n
Volume 1.0731554851456E+20
Surface area 1.0920919963313E+14
Circumference 18522710.905045

Square

Length = n
Perimeter 11791924
Area 8690591976361
Diagonal 4169074.7118182

Cube

Length = n
Surface area 52143551858166
Volume 2.5619700025065E+19
Space diagonal 5106052.8717477

Equilateral Triangle

Length = n
Perimeter 8843943
Area 3763136712726.9
Altitude 2553026.4358739

Triangular Pyramid

Length = n
Surface area 3763136712726.9
Volume 3.0193106032814E+18
Height 1389691.5706061