31991409 (number)

31991409 is an odd 8-digits composite number following 31991408 and preceding 31991410. In scientific notation, it is written as 3.1991409 × 10^7. The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors. There are 21327588 positive integers (up to 31991409) that are relatively prime to 31991409.

Interesting facts

Basic properties

Name

Name thirty-one million nine hundred ninety-one thousand four hundred nine

Notation

Scientific notation 3.1991409 × 10^7
Engineering notation 3.1991409 × 10^6

Prime Factorization of 31991409

Prime Factorization 27 × 1184867

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 31991409
Product of the distinct prime numbers

The prime factorization of 31991409 is 27 × 1184867. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 2, 57, 50, 322, 679, 3932, 2686, 4003, 15143, 473025, 483894, 953480, 5015741, 42342582, 4828740, 69703947, 747904059, 3097334847, 9057436121

Basic calculations (n = 31991409)

Multiplication

n×y
n×2 63982818
n×3 95974227
n×4 127965636
n×5 159957045

Division

n÷y
n÷2 15995704.5
n÷3 10663803
n÷3 7997852.25
n÷5 6398281.8

Exponentiation

ny
n2 1023450249805281
n3 3.2741615532673E+22
n4 1.0474504138265E+30
n5 3.3509414595943E+37

Nth Root

y√n
2√n 5656.0948542258
3√n 317.45179667901
4√n 75.207013331376
5√n 31.696161689245

Divisors of 31991409

1, 27, 1184867, 31991409

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31991408
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31991409 can be divided by 4 positive divisors. The sum of these divisors (counting 31991409) is 1, the average is 0.25.

Base conversion 31991409

Base System Value
2 Binary 1111010000010011001110001
3 Ternary 2020012022222000
4 Quaternary 1322002121301
5 Quinary 31142211114
6 Senary 3101404213
8 Octal 172023161
10 Decimal 31991409
12 Duodecimal a869669
16 Hexadecimal 1e82671
20 Vigesimal 9jiia9
36 Base36 j1oq9

Cryptographic Hash Functions

md5 6fb3bc8a9db5a779e49004babbe56f1d
sha1 e9303a50257d09880a96753b0d897f1f2c34010b
sha256 e7662ecafb699bae21d57cad3b8a5cdafb3fcfbf75fa8ae736a220f5d9ef57b4
sha512 9defad4a107fc7ab3e3e10d657b9b08f8bf785ce5831e448b2da267b942a759d88630a3c236c62d9c6e98a37ec2f4b99ccab3a4c934935902c0238038719afde
ripemd-160 306e6388e6b3797a231297c4034f358df1ae862d

31991409 as geometric shapes

Circle

Radius = n
Diameter 63982818
Circumference 201007950.98477
Area 3.2152637861029E+15

Sphere

Radius = n
Volume 1.3714775843214E+23
Surface area 1.2861055144412E+16
Circumference 201007950.98477

Square

Length = n
Perimeter 127965636
Area 1023450249805281
Diagonal 45242684.487225

Cube

Length = n
Surface area 6140701498831686
Volume 3.2741615532673E+22
Space diagonal 55410745.793716

Equilateral Triangle

Length = n
Perimeter 95974227
Area 4.4316695792045E+14
Altitude 27705372.896858

Triangular Pyramid

Length = n
Surface area 4.4316695792045E+14
Volume 3.858636395026E+21
Height 15080894.829075