2981808 (number)

2981808 is an even 7-digits composite number following 2981807 and preceding 2981809. In scientific notation, it is written as 2.981808 × 10^6. The sum of its digits is 36. It has a total of 6 prime factors and 20 positive divisors. There are 993888 positive integers (up to 2981808) that are relatively prime to 2981808.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.981808 × 10^6
Engineering notation 2.981808 × 10^6

Prime Factorization of 2981808

Prime Factorization 2 × 2 × 2 × 2 × 9 × 20707

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 372726
Product of the distinct prime numbers

The prime factorization of 2981808 is 2 × 2 × 2 × 2 × 9 × 20707. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 2981808)

Multiplication

n×y
n×2 5963616
n×3 8945424
n×4 11927232
n×5 14909040

Division

n÷y
n÷2 1490904
n÷3 993936
n÷3 745452
n÷5 596361.6

Exponentiation

ny
n2 8891178948864
n3 2.6511788519154E+19
n4 7.9053063100722E+25
n5 2.3572105597824E+32

Nth Root

y√n
2√n 1726.7912438972
3√n 143.93283905168
4√n 41.554677761922
5√n 19.719501642629

Divisors of 2981808

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -2981807
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 2981808 can be divided by 20 positive divisors. The sum of these divisors (counting 2981808) is 1, the average is 0.05.

Base conversion 2981808

Base System Value
2 Binary 1011010111111110110000
3 Ternary 12121111021100
4 Quaternary 23113332300
5 Quinary 1230404213
6 Senary 143524400
8 Octal 13277660
10 Decimal 2981808
12 Duodecimal bb9700
16 Hexadecimal 2d7fb0
20 Vigesimal icea8
36 Base36 1rws0

Cryptographic Hash Functions

md5 4e712f6580d18b25c562406c40d30642
sha1 3e234faddbde86941354f02a094362759c279c54
sha256 d06ff459219ab24d8563a13795642512b25a806f1b804173e2e84420746b19a3
sha512 132f3f405a2485e9edab21c0434f80b66f9419f7aecba6ac17106e6d826557fdd35d67ca17a3314ed3ba96b7d4bf51036e20be58d9328207ea42be594b4ec37c
ripemd-160 56314dfdcc7f1651566534c39e00f162cf0bab7a

2981808 as geometric shapes

Circle

Radius = n
Diameter 5963616
Circumference 18735252.214431
Area 27932462467503

Sphere

Radius = n
Volume 1.110523200604E+20
Surface area 1.1172984987001E+14
Circumference 18735252.214431

Square

Length = n
Perimeter 11927232
Area 8891178948864
Diagonal 4216913.3139926

Cube

Length = n
Surface area 53347073693184
Volume 2.6511788519154E+19
Space diagonal 5164642.9544153

Equilateral Triangle

Length = n
Perimeter 8945424
Area 3849993419654.8
Altitude 2582321.4772077

Triangular Pyramid

Length = n
Surface area 3849993419654.8
Volume 3.1244442405463E+18
Height 1405637.7713309