30881491 (number)

30881491 is an odd 8-digits composite number following 30881490 and preceding 30881492. In scientific notation, it is written as 3.0881491 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 28794528 positive integers (up to 30881491) that are relatively prime to 30881491.

Interesting facts

Basic properties

Name

Name thirty million eight hundred eighty-one thousand four hundred ninety-one

Notation

Scientific notation 3.0881491 × 10^7
Engineering notation 3.0881491 × 10^6

Prime Factorization of 30881491

Prime Factorization 139 × 29 × 47 × 163

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 30881491
Product of the distinct prime numbers

The prime factorization of 30881491 is 139 × 29 × 47 × 163. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 8, 53, 94, 614, 77, 225, 953, 99102, 31000, 115449, 412207, 4984620, 8166848, 9956009, 22163954, 941883340, 969208197, 1612525129, 6776357312

Basic calculations (n = 30881491)

Multiplication

n×y
n×2 61762982
n×3 92644473
n×4 123525964
n×5 154407455

Division

n÷y
n÷2 15440745.5
n÷3 10293830.333333
n÷3 7720372.75
n÷5 6176298.2

Exponentiation

ny
n2 953666486383081
n3 2.9450643016241E+22
n4 9.0947976725025E+29
n5 2.8086091247021E+37

Nth Root

y√n
2√n 5557.1117498211
3√n 313.73725095416
4√n 74.546037787539
5√n 31.473109454136

Divisors of 30881491

1, 29, 47, 139, 163, 1363, 4031, 4727, 6533, 7661, 22657, 189457, 222169, 657053, 1064879, 30881491

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 -30881490
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 30881491 can be divided by 16 positive divisors. The sum of these divisors (counting 30881491) is 1, the average is 0.0625.

Base conversion 30881491

Base System Value
2 Binary 1110101110011011011010011
3 Ternary 2011002221102221
4 Quaternary 1311303123103
5 Quinary 30401201431
6 Senary 3021521511
8 Octal 165633323
10 Decimal 30881491
12 Duodecimal a413297
16 Hexadecimal 1d736d3
20 Vigesimal 9d03eb
36 Base36 idwb7

Cryptographic Hash Functions

md5 91362804e105de0f5a2ab92bc5602f7d
sha1 6a095253ba8821ebe230769870b736825cbf9fed
sha256 baf62f44741504acd5a0b8a3bc3cb9999f4dda6e70ec9f25aeca601d4854c6b6
sha512 ccc2cb5a9c5dd5d46f4c9221b57e78fdbbf36bc1dbd4a508c3a08712b16ae7ac2bca00f8134f861154f7192811d25073bf74d629c59adc2a17fba4a34097d81b
ripemd-160 ec38eb473ff6549ee7e151e7fbbe3b9650fb6b7b

30881491 as geometric shapes

Circle

Radius = n
Diameter 61762982
Circumference 194034130.515
Area 2.9960316275959E+15

Sphere

Radius = n
Volume 1.2336256499109E+23
Surface area 1.1984126510384E+16
Circumference 194034130.515

Square

Length = n
Perimeter 123525964
Area 953666486383081
Diagonal 43673023.398503

Cube

Length = n
Surface area 5721998918298486
Volume 2.9450643016241E+22
Space diagonal 53488311.425481

Equilateral Triangle

Length = n
Perimeter 92644473
Area 4.129497019728E+14
Altitude 26744155.712741

Triangular Pyramid

Length = n
Surface area 4.129497019728E+14
Volume 3.4707915645147E+21
Height 14557674.466168