30891978 (number)

30891978 is an even 8-digits composite number following 30891977 and preceding 30891979. In scientific notation, it is written as 3.0891978 × 10^7. The sum of its digits is 45. It has a total of 6 prime factors and 48 positive divisors. There are 9400320 positive integers (up to 30891978) that are relatively prime to 30891978.

Interesting facts

Basic properties

Name

Name thirty million eight hundred ninety-one thousand nine hundred seventy-eight

Notation

Scientific notation 3.0891978 × 10^7
Engineering notation 3.0891978 × 10^6

Prime Factorization of 30891978

Prime Factorization 2 × 3 × 3 × 13 × 97 × 1361

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10297326
Product of the distinct prime numbers

The prime factorization of 30891978 is 2 × 3 × 3 × 13 × 97 × 1361. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 30891978)

Multiplication

n×y
n×2 61783956
n×3 92675934
n×4 123567912
n×5 154459890

Division

n÷y
n÷2 15445989
n÷3 10297326
n÷3 7722994.5
n÷5 6178395.6

Exponentiation

ny
n2 954314304752484
n3 2.9480656507499E+22
n4 9.1071579225522E+29
n5 2.8133812218601E+37

Nth Root

y√n
2√n 5558.0552354218
3√n 313.77276079172
4√n 74.552365726527
5√n 31.475246745204

Divisors of 30891978

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -30891977
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 30891978 can be divided by 48 positive divisors. The sum of these divisors (counting 30891978) is 1, the average is 0.020833333333333.

Base conversion 30891978

Base System Value
2 Binary 1110101110101111111001010
3 Ternary 2011010110211100
4 Quaternary 1311311333022
5 Quinary 30402020403
6 Senary 3022042230
8 Octal 165657712
10 Decimal 30891978
12 Duodecimal a419376
16 Hexadecimal 1d75fca
20 Vigesimal 9d19ii
36 Base36 ie4ei

Cryptographic Hash Functions

md5 13853fa832f828c26bf5ed8bf8382f9c
sha1 79bca8a075525ac63e373e6f683a47dc7e32bffe
sha256 3df3af722ea27dfde050603b616ca2dda86a463869995c80358a54b9e3781f61
sha512 0808944176d63d729804f0c2d2135d381568897ee4bae458f84173b3623189325c11b1f44b09965b7ceff99dc34a2edfc470bdcc80b238d46d1b6e948420ee1c
ripemd-160 2ccb0d075a5b81fcdd4e18b6d39aa81aea49f858

30891978 as geometric shapes

Circle

Radius = n
Diameter 61783956
Circumference 194100022.27932
Area 2.9980668090261E+15

Sphere

Radius = n
Volume 1.2348828520928E+23
Surface area 1.1992267236104E+16
Circumference 194100022.27932

Square

Length = n
Perimeter 123567912
Area 954314304752484
Diagonal 43687854.256131

Cube

Length = n
Surface area 5725885828514904
Volume 2.9480656507499E+22
Space diagonal 53506475.4423

Equilateral Triangle

Length = n
Perimeter 92675934
Area 4.1323021555527E+14
Altitude 26753237.72115

Triangular Pyramid

Length = n
Surface area 4.1323021555527E+14
Volume 3.4743286883806E+21
Height 14562618.085377