31991401 (number)

31991401 is an odd 8-digits composite number following 31991400 and preceding 31991402. In scientific notation, it is written as 3.1991401 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 29530512 positive integers (up to 31991401) that are relatively prime to 31991401.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 3.1991401 × 10^7
Engineering notation 3.1991401 × 10^6

Prime Factorization of 31991401

Prime Factorization 13 × 2460877

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 31991401
Product of the distinct prime numbers

The prime factorization of 31991401 is 13 × 2460877. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 31991401)

Multiplication

n×y
n×2 63982802
n×3 95974203
n×4 127965604
n×5 159957005

Division

n÷y
n÷2 15995700.5
n÷3 10663800.333333
n÷3 7997850.25
n÷5 6398280.2

Exponentiation

ny
n2 1023449737942801
n3 3.2741590969873E+22
n4 1.0474493660952E+30
n5 3.3509372697947E+37

Nth Root

y√n
2√n 5656.0941470241
3√n 317.45177021759
4√n 75.207008629675
5√n 31.696160104011

Divisors of 31991401

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 -31991400
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 31991401 can be divided by 4 positive divisors. The sum of these divisors (counting 31991401) is 1, the average is 0.25.

Base conversion 31991401

Base System Value
2 Binary 1111010000010011001101001
3 Ternary 2020012022221201
4 Quaternary 1322002121221
5 Quinary 31142211101
6 Senary 3101404201
8 Octal 172023151
10 Decimal 31991401
12 Duodecimal a869661
16 Hexadecimal 1e82669
20 Vigesimal 9jiia1
36 Base36 j1oq1

Cryptographic Hash Functions

md5 39cd9539af38b3f650fdefd8dcdaf19f
sha1 a4bde399b2eb800464eb12a2dc63cacc98f6e756
sha256 6073f880791a449702e27db53017fe345ffb917183c819746ea513a70aefa973
sha512 e2f7b13e7d02f32c92ce166bd126b554c90e8c81e7d74405064a3dc6711df7a65319863124845c6f94423e3ebbb4ab5ee99b16af6ec8b673963365081f8dc6ee
ripemd-160 82598457b5a44970f2ebdaf52f08d240df26466f

31991401 as geometric shapes

Circle

Radius = n
Diameter 63982802
Circumference 201007900.71929
Area 3.2152621780395E+15

Sphere

Radius = n
Volume 1.3714765554373E+23
Surface area 1.2861048712158E+16
Circumference 201007900.71929

Square

Length = n
Perimeter 127965604
Area 1023449737942801
Diagonal 45242673.173516

Cube

Length = n
Surface area 6140698427656806
Volume 3.2741590969873E+22
Space diagonal 55410731.93731

Equilateral Triangle

Length = n
Perimeter 95974203
Area 4.431667362775E+14
Altitude 27705365.968655

Triangular Pyramid

Length = n
Surface area 4.431667362775E+14
Volume 3.8586335002722E+21
Height 15080891.057839