31387938 (number)

31387938 is an even 8-digits composite number following 31387937 and preceding 31387939. In scientific notation, it is written as 3.1387938 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 10412640 positive integers (up to 31387938) that are relatively prime to 31387938.

Interesting facts

Basic properties

Name

Name thirty-one million three hundred eighty-seven thousand nine hundred thirty-eight

Notation

Scientific notation 3.1387938 × 10^7
Engineering notation 3.1387938 × 10^6

Prime Factorization of 31387938

Prime Factorization 2 × 633 × 24793

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 31387938
Product of the distinct prime numbers

The prime factorization of 31387938 is 2 × 633 × 24793. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 31387938)

Multiplication

n×y
n×2 62775876
n×3 94163814
n×4 125551752
n×5 156939690

Division

n÷y
n÷2 15693969
n÷3 10462646
n÷3 7846984.5
n÷5 6277587.6

Exponentiation

ny
n2 985202651891844
n3 3.0923479755017E+22
n4 9.7062426529472E+29
n5 3.0465894260366E+37

Nth Root

y√n
2√n 5602.4939089659
3√n 315.44302489928
4√n 74.849809010885
5√n 31.575668738854

Divisors of 31387938

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31387937
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31387938 can be divided by 8 positive divisors. The sum of these divisors (counting 31387938) is 1, the average is 0.125.

Base conversion 31387938

Base System Value
2 Binary 1110111101111000100100010
3 Ternary 2012001200011020
4 Quaternary 1313233010202
5 Quinary 31013403223
6 Senary 3040430310
8 Octal 167570442
10 Decimal 31387938
12 Duodecimal a618396
16 Hexadecimal 1def122
20 Vigesimal 9g39gi
36 Base36 ior36

Cryptographic Hash Functions

md5 3a634220580d44bfdff283170ba30811
sha1 e6c5255cccf669be29332b00695063fec4235304
sha256 cd3522de1be429c40a7c9af7e96053b8dae60f4c93b8801179c63b6b9f0fd30d
sha512 d36157ec654465b2bb1bad70205497ccbaedfa7af66963aa7f7240d9a701f0efb2182a77a9821e1f087a616f97e064dfc20184daffa2261bb1a915093e6ca294
ripemd-160 fd3e45b3c834a1a66663f5b76bb3e36da1706bfd

31387938 as geometric shapes

Circle

Radius = n
Diameter 62775876
Circumference 197216230.86426
Area 3.0951054134806E+15

Sphere

Radius = n
Volume 1.2953196909572E+23
Surface area 1.2380421653922E+16
Circumference 197216230.86426

Square

Length = n
Perimeter 125551752
Area 985202651891844
Diagonal 44389247.614526

Cube

Length = n
Surface area 5911215911351064
Volume 3.0923479755017E+22
Space diagonal 54365503.360822

Equilateral Triangle

Length = n
Perimeter 94163814
Area 4.2660526220707E+14
Altitude 27182751.680411

Triangular Pyramid

Length = n
Surface area 4.2660526220707E+14
Volume 3.6443670387762E+21
Height 14796415.871509