31997 (number)

31997 is an odd 5-digits composite number following 31996 and preceding 31998. In scientific notation, it is written as 3.1997 × 10^4. The sum of its digits is 29. It has a total of 3 prime factors and 6 positive divisors. There are 27384 positive integers (up to 31997) that are relatively prime to 31997.

Interesting facts

Basic properties

Name

Name thirty-one thousand nine hundred ninety-seven

Notation

Scientific notation 3.1997 × 10^4
Engineering notation 3.1997 × 10^3

Prime Factorization of 31997

Prime Factorization 7 × 7 × 653

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 4571
Product of the distinct prime numbers

The prime factorization of 31997 is 7 × 7 × 653. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 6, 37, 74, 162, 576, 1910, 9231, 3634, 70469, 236464, 961960, 4520403, 8795931, 62298152, 31153743, 390975604, 818680694, 3008253444, 9348577558

Basic calculations (n = 31997)

Multiplication

n×y
n×2 63994
n×3 95991
n×4 127988
n×5 159985

Division

n÷y
n÷2 15998.5
n÷3 10665.666666667
n÷3 7999.25
n÷5 6399.4

Exponentiation

ny
n2 1023808009
n3 32758784863973
n4 1048182839292544081
n5 3.3538706308844E+22

Nth Root

y√n
2√n 178.87705274853
3√n 31.747028882701
4√n 13.374492616489
5√n 7.9619941152823

Divisors of 31997

1, 7, 49, 653, 4571, 31997

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31996
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31997 can be divided by 6 positive divisors. The sum of these divisors (counting 31997) is 1, the average is 0.16666666666667.

Base conversion 31997

Base System Value
2 Binary 111110011111101
3 Ternary 1121220002
4 Quaternary 13303331
5 Quinary 2010442
6 Senary 404045
8 Octal 76375
10 Decimal 31997
12 Duodecimal 16625
16 Hexadecimal 7cfd
20 Vigesimal 3jjh
36 Base36 oot

Cryptographic Hash Functions

md5 e2f8878a9018464d0e6c32e6c5f755f1
sha1 019bcddf81e76384b9be8466f29433153735d6d8
sha256 9b4f422142a7e805ba4e78b6e19d5389283023541c7cf5955557f21fae1c078a
sha512 26c5e795dbd27a2be4cd258e5c42437594dd3e346e7e0b7d8751aa9b76c31ffca9d5a95dfd357819bfd5501e51dce2b8583308e36619bad1d066481d935e6eb5
ripemd-160 8281c0420e4b20669b356d2e06667bd3018d876a

31997 as geometric shapes

Circle

Radius = n
Diameter 63994
Circumference 201043.08027383
Area 3216387719.7608

Sphere

Radius = n
Volume 1.3721967715891E+14
Surface area 12865550879.043
Circumference 201043.08027383

Square

Length = n
Perimeter 127988
Area 1023808009
Diagonal 45250.591355252

Cube

Length = n
Surface area 6142848054
Volume 32758784863973
Space diagonal 55420.429689781

Equilateral Triangle

Length = n
Perimeter 95991
Area 443321872.19598
Altitude 27710.214844891

Triangular Pyramid

Length = n
Surface area 443321872.19598
Volume 3860659820124.4
Height 15083.530451751