2781421 (number)

2781421 is an odd 7-digits composite number following 2781420 and preceding 2781422. In scientific notation, it is written as 2.781421 × 10^6. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 2617792 positive integers (up to 2781421) that are relatively prime to 2781421.

Interesting facts

Basic properties

Name

Name two million seven hundred eighty-one thousand four hundred twenty-one

Notation

Scientific notation 2.781421 × 10^6
Engineering notation 2.781421 × 10^6

Prime Factorization of 2781421

Prime Factorization 17 × 163613

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 2781421
Product of the distinct prime numbers

The prime factorization of 2781421 is 17 × 163613. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 2781421)

Multiplication

n×y
n×2 5562842
n×3 8344263
n×4 11125684
n×5 13907105

Division

n÷y
n÷2 1390710.5
n÷3 927140.33333333
n÷3 695355.25
n÷5 556284.2

Exponentiation

ny
n2 7736302779241
n3 2.1517915012539E+19
n4 5.9850380692092E+25
n5 1.6646910571498E+32

Nth Root

y√n
2√n 1667.7592751953
3√n 140.63354028791
4√n 40.838208520885
5√n 19.44703276254

Divisors of 2781421

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 -2781420
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 2781421 can be divided by 4 positive divisors. The sum of these divisors (counting 2781421) is 1, the average is 0.25.

Base conversion 2781421

Base System Value
2 Binary 1010100111000011101101
3 Ternary 12020022101121
4 Quaternary 22213003231
5 Quinary 1203001141
6 Senary 135340541
8 Octal 12470355
10 Decimal 2781421
12 Duodecimal b21751
16 Hexadecimal 2a70ed
20 Vigesimal h7db1
36 Base36 1nm5p

Cryptographic Hash Functions

md5 b660b6895ab945516ca7157e654824f6
sha1 d74499f4eee2090ba9d1afb1fa9e399b0417fdea
sha256 026a7025918f1fd2f115b0905b191232731b3a652f31df0a154667bbe4bd9fd8
sha512 dd55956a0d868a9287ac3fbf9fd98a3fda83ba103b74f7645085af8f4a1678f1907ca5be475797f2d9dd45473a7d6e876341cb7dd23d266bdee00f48c19ca1fb
ripemd-160 2684be333a8afa307bc7f7e257133dca0e85b791

2781421 as geometric shapes

Circle

Radius = n
Diameter 5562842
Circumference 17476183.560281
Area 24304311977210

Sphere

Radius = n
Volume 9.0134031631951E+19
Surface area 97217247908839
Circumference 17476183.560281

Square

Length = n
Perimeter 11125684
Area 7736302779241
Diagonal 3933523.3008693

Cube

Length = n
Surface area 46417816675446
Volume 2.1517915012539E+19
Space diagonal 4817562.489239

Equilateral Triangle

Length = n
Perimeter 8344263
Area 3349917369095.4
Altitude 2408781.2446195

Triangular Pyramid

Length = n
Surface area 3349917369095.4
Volume 2.5359106037271E+18
Height 1311174.4336231