30781390 (number)

30781390 is an even 8-digits composite number following 30781389 and preceding 30781391. In scientific notation, it is written as 3.0781390 × 10^7. The sum of its digits is 31. It has a total of 5 prime factors and 24 positive divisors. There are 11587200 positive integers (up to 30781390) that are relatively prime to 30781390.

Interesting facts

Basic properties

Name

Name thirty million seven hundred eighty-one thousand three hundred ninety

Notation

Scientific notation 3.0781390 × 10^7
Engineering notation 3.0781390 × 10^6

Prime Factorization of 30781390

Prime Factorization 2 × 5 × 17 × 17 × 10651

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 1810670
Product of the distinct prime numbers

The prime factorization of 30781390 is 2 × 5 × 17 × 17 × 10651. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 7, 11, 41, 488, 822, 6589, 7151, 28790, 84953, 961387, 585744, 4513240, 9563586, 64027773, 63961014, 878595647, 666189144, 6753479003, 2385799224

Basic calculations (n = 30781390)

Multiplication

n×y
n×2 61562780
n×3 92344170
n×4 123125560
n×5 153906950

Division

n÷y
n÷2 15390695
n÷3 10260463.333333
n÷3 7695347.5
n÷5 6156278

Exponentiation

ny
n2 947493970332100
n3 2.9165181423441E+22
n4 8.9774482381569E+29
n5 2.7633833542352E+37

Nth Root

y√n
2√n 5548.0978722441
3√n 313.39789550349
4√n 74.485554789128
5√n 31.452679206375

Divisors of 30781390

1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 10651, 21302, 53255, 106510, 181067, 362134, 905335, 1810670, 3078139, 6156278, 15390695, 30781390

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 -30781389
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 30781390 can be divided by 24 positive divisors. The sum of these divisors (counting 30781390) is 1, the average is 0.041666666666667.

Base conversion 30781390

Base System Value
2 Binary 1110101011010111111001110
3 Ternary 2010220212010111
4 Quaternary 1311122333032
5 Quinary 30340001030
6 Senary 3015430234
8 Octal 165327716
10 Decimal 30781390
12 Duodecimal a38537a
16 Hexadecimal 1d5afce
20 Vigesimal 9c7d9a
36 Base36 ibr2m

Cryptographic Hash Functions

md5 5157cb8fcfd6c0198779c487560ecd3d
sha1 bc6500ebdd51faecccff023ba0c46406fe5979a0
sha256 3ad3736b93ac7114bcb03da5cbd029dac677e14b939ca1fe107be25c267d2d64
sha512 4705ab0642d9bcbcbd78c38eef03181428b185076c1e986caa988aa1cedb043faee1641a414729b28c258e3b238d3653d97a8e307db75b7d9f9b6063f631ef90
ripemd-160 e3403532ee2e326e5a05821f4623b89e7d3e1e96

30781390 as geometric shapes

Circle

Radius = n
Diameter 61562780
Circumference 193405177.38256
Area 2.976640096516E+15

Sphere

Radius = n
Volume 1.2216682626733E+23
Surface area 1.1906560386064E+16
Circumference 193405177.38256

Square

Length = n
Perimeter 123125560
Area 947493970332100
Diagonal 43531459.206696

Cube

Length = n
Surface area 5684963821992600
Volume 2.9165181423441E+22
Space diagonal 53314931.407593

Equilateral Triangle

Length = n
Perimeter 92344170
Area 4.1027692412009E+14
Altitude 26657465.703796

Triangular Pyramid

Length = n
Surface area 4.1027692412009E+14
Volume 3.4371495931752E+21
Height 14510486.402232