1981855 (number)

1981855 is an odd 7-digits composite number following 1981854 and preceding 1981856. In scientific notation, it is written as 1.981855 × 10^6. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 1580448 positive integers (up to 1981855) that are relatively prime to 1981855.

Interesting facts

Basic properties

Name

Name one million nine hundred eighty-one thousand eight hundred fifty-five

Notation

Scientific notation 1.981855 × 10^6
Engineering notation 1.981855 × 10^6

Prime Factorization of 1981855

Prime Factorization 5 × 607 × 653

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 1981855
Product of the distinct prime numbers

The prime factorization of 1981855 is 5 × 607 × 653. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 10, 38, 77, 755, 321, 768, 8219, 53899, 42275, 385402, 902449, 4514687, 446350, 89867799, 45677559, 367433220, 276915468, 4937196793, 8168211431

Basic calculations (n = 1981855)

Multiplication

n×y
n×2 3963710
n×3 5945565
n×4 7927420
n×5 9909275

Division

n÷y
n÷2 990927.5
n÷3 660618.33333333
n÷3 495463.75
n÷5 396371

Exponentiation

ny
n2 3927749241025
n3 7784229472071601375
n4 1.5427214100372E+25
n5 3.0574501400894E+31

Nth Root

y√n
2√n 1407.7837191842
3√n 125.6099257508
4√n 37.520444016351
5√n 18.172487355167

Divisors of 1981855

1, 5, 607, 653, 3035, 3265, 396371, 1981855

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -1981854
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1981855 can be divided by 8 positive divisors. The sum of these divisors (counting 1981855) is 1, the average is 0.125.

Base conversion 1981855

Base System Value
2 Binary 111100011110110011111
3 Ternary 10201200121001
4 Quaternary 13203312133
5 Quinary 1001404410
6 Senary 110251131
8 Octal 7436637
10 Decimal 1981855
12 Duodecimal 7b6aa7
16 Hexadecimal 1e3d9f
20 Vigesimal c7ecf
36 Base36 16h7j

Cryptographic Hash Functions

md5 db939a45dbbbd28bc8a004c98cb23b4e
sha1 5d693c4eae2737161f0dd249b0ddcff63fd9090e
sha256 5baf5af42574063158610273a6c9f860f601c753f72443c135b8320b8d0c999e
sha512 9a338d11473b2fc99b017a373f6379aaf2ec57a8f60f8019e7c17cc9bfadbf8de8e959529e9f556a89f5c1187b2ad8b1e5427e339544ac198fb7586f5690839a
ripemd-160 8b0083ac790eeb88e6c13c932832f5d6f1bb910c

1981855 as geometric shapes

Circle

Radius = n
Diameter 3963710
Circumference 12452362.21696
Area 12339388160747

Sphere

Radius = n
Volume 3.2606504164423E+19
Surface area 49357552642988
Circumference 12452362.21696

Square

Length = n
Perimeter 7927420
Area 3927749241025
Diagonal 2802766.2196569

Cube

Length = n
Surface area 23566495446150
Volume 7784229472071601375
Space diagonal 3432673.5532344

Equilateral Triangle

Length = n
Perimeter 5945565
Area 1700765311211.3
Altitude 1716336.7766172

Triangular Pyramid

Length = n
Surface area 1700765311211.3
Volume 9.1738024100233E+17
Height 934255.40655231