1981750 (number)

1981750 is an even 7-digits composite number following 1981749 and preceding 1981751. In scientific notation, it is written as 1.981750 × 10^6. The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors. There are 792600 positive integers (up to 1981750) that are relatively prime to 1981750.

Interesting facts

Basic properties

Name

Name one million nine hundred eighty-one thousand seven hundred fifty

Notation

Scientific notation 1.981750 × 10^6
Engineering notation 1.981750 × 10^6

Prime Factorization of 1981750

Prime Factorization 2 × 25 × 5 × 7927

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1981750
Product of the distinct prime numbers

The prime factorization of 1981750 is 2 × 25 × 5 × 7927. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 1, 40, 35, 485, 821, 1176, 2211, 53314, 61875, 449139, 108969, 6204865, 2714111, 68639755, 90773610, 739286151, 626759240, 8096219781, 8508189455

Basic calculations (n = 1981750)

Multiplication

n×y
n×2 3963500
n×3 5945250
n×4 7927000
n×5 9908750

Division

n÷y
n÷2 990875
n÷3 660583.33333333
n÷3 495437.5
n÷5 396350

Exponentiation

ny
n2 3927333062500
n3 7782992296609375000
n4 1.5423944983806E+25
n5 3.0566402971657E+31

Nth Root

y√n
2√n 1407.7464260299
3√n 125.6077074124
4√n 37.519947041939
5√n 18.172294792986

Divisors of 1981750

1, 2, 5, 10, 25, 50, 125, 250, 7927, 15854, 39635, 79270, 198175, 396350, 990875, 1981750

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -1981749
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1981750 can be divided by 16 positive divisors. The sum of these divisors (counting 1981750) is 1, the average is 0.0625.

Base conversion 1981750

Base System Value
2 Binary 111100011110100110110
3 Ternary 10201200110011
4 Quaternary 13203310312
5 Quinary 1001404000
6 Senary 110250434
8 Octal 7436466
10 Decimal 1981750
12 Duodecimal 7b6a1a
16 Hexadecimal 1e3d36
20 Vigesimal c7e7a
36 Base36 16h4m

Cryptographic Hash Functions

md5 865ceccc726e695105fe1d2b2bb25062
sha1 3cbd4986bf2ba16f6a77e3a0e7378525223ad014
sha256 e1945c518d43a8ae621e506be4ba31a53b116b40fbbbea9b40b71f5be3737b4d
sha512 87416c09bf8f5bcef45df7da3156148ce5fa87f09396b75cc0772adb568d19b20fc7ecf93b95dc2817af444f5fe12ef7d50a777c7a8073c50ba586ca18e36067
ripemd-160 29e68b1f6f19df77e8f4cd7441087a9b46374de4

1981750 as geometric shapes

Circle

Radius = n
Diameter 3963500
Circumference 12451702.482503
Area 12338080697350

Sphere

Radius = n
Volume 3.2601321895965E+19
Surface area 49352322789401
Circumference 12451702.482503

Square

Length = n
Perimeter 7927000
Area 3927333062500
Diagonal 2802617.7272329

Cube

Length = n
Surface area 23563998375000
Volume 7782992296609375000
Space diagonal 3432491.6878996

Equilateral Triangle

Length = n
Perimeter 5945250
Area 1700585100623.8
Altitude 1716245.8439498

Triangular Pyramid

Length = n
Surface area 1700585100623.8
Volume 9.1723443847586E+17
Height 934205.90907763