31981812 (number)

31981812 is an even 8-digits composite number following 31981811 and preceding 31981813. In scientific notation, it is written as 3.1981812 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 24 positive divisors. There are 10485600 positive integers (up to 31981812) that are relatively prime to 31981812.

Interesting facts

Basic properties

Name

Name thirty-one million nine hundred eighty-one thousand eight hundred twelve

Notation

Scientific notation 3.1981812 × 10^7
Engineering notation 3.1981812 × 10^6

Prime Factorization of 31981812

Prime Factorization 2 × 2 × 3 × 61 × 43691

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 15990906
Product of the distinct prime numbers

The prime factorization of 31981812 is 2 × 2 × 3 × 61 × 43691. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 1, 71, 31, 275, 611, 6324, 1856, 86441, 77602, 23901, 918974, 2866207, 2324563, 19022531, 68104676, 166391015, 728019232, 3168155609, 6033885069

Basic calculations (n = 31981812)

Multiplication

n×y
n×2 63963624
n×3 95945436
n×4 127927248
n×5 159909060

Division

n÷y
n÷2 15990906
n÷3 10660604
n÷3 7995453
n÷5 6396362.4

Exponentiation

ny
n2 1022836298803344
n3 3.2712158215104E+22
n4 1.0461940941497E+30
n5 3.3459182834607E+37

Nth Root

y√n
2√n 5655.2464137295
3√n 317.42004972273
4√n 75.201372419188
5√n 31.69425977507

Divisors of 31981812

1, 2, 3, 4, 6, 12, 61, 122, 183, 244, 366, 732, 43691, 87382, 131073, 174764, 262146, 524292, 2665151, 5330302, 7995453, 10660604, 15990906, 31981812

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31981811
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31981812 can be divided by 24 positive divisors. The sum of these divisors (counting 31981812) is 1, the average is 0.041666666666667.

Base conversion 31981812

Base System Value
2 Binary 1111010000000000011110100
3 Ternary 2020011211210120
4 Quaternary 1322000003310
5 Quinary 31141404222
6 Senary 3101251540
8 Octal 172000364
10 Decimal 31981812
12 Duodecimal a863bb0
16 Hexadecimal 1e800f4
20 Vigesimal 9jheac
36 Base36 j1hbo

Cryptographic Hash Functions

md5 496dd05dd7c0dbcb0d0efb310e170276
sha1 381ff5bb73ba892af689b98f8fea6f4da9652fb3
sha256 ed58d38f33cdcacddca6e583081262aa258d4779356e475b6417110aeb7fa80e
sha512 523dd2ccd4efdde6542382b252d37d17dc01ca31c48cfe7bc8cf25b21607b7ed9da3aa4e3b5cfd2733fe4a32e2aafe8f2cdcbb18bc88d2b48070ddc67ec51435
ripemd-160 0ba70390063424f445de7284a8060857d399ff8d

31981812 as geometric shapes

Circle

Radius = n
Diameter 63963624
Circumference 200947651.25538
Area 3.2133350021456E+15

Sphere

Radius = n
Volume 1.3702436790885E+23
Surface area 1.2853340008582E+16
Circumference 200947651.25538

Square

Length = n
Perimeter 127927248
Area 1022836298803344
Diagonal 45229112.279667

Cube

Length = n
Surface area 6137017792820064
Volume 3.2712158215104E+22
Space diagonal 55394123.302116

Equilateral Triangle

Length = n
Perimeter 95945436
Area 4.4290110933827E+14
Altitude 27697061.651058

Triangular Pyramid

Length = n
Surface area 4.4290110933827E+14
Volume 3.8551648168579E+21
Height 15076370.759889