31387930 (number)

31387930 is an even 8-digits composite number following 31387929 and preceding 31387931. In scientific notation, it is written as 3.1387930 × 10^7. The sum of its digits is 34. It has a total of 6 prime factors and 32 positive divisors. There are 10760400 positive integers (up to 31387930) that are relatively prime to 31387930.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 3.1387930 × 10^7
Engineering notation 3.1387930 × 10^6

Prime Factorization of 31387930

Prime Factorization 2 × 7 × 5 × 7 × 7 × 9151

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 640570
Product of the distinct prime numbers

The prime factorization of 31387930 is 2 × 7 × 5 × 7 × 7 × 9151. Since it has a total of 6 prime factors.

Most popular turbo-numbers

10, 10, 23, 88, 282, 940, 9743, 5020, 41903, 35610, 636741, 968377, 9023798, 9102631, 86573170, 45369275, 156592938, 131176677, 6993270261, 3942766837

Basic calculations (n = 31387930)

Multiplication

n×y
n×2 62775860
n×3 94163790
n×4 125551720
n×5 156939650

Division

n÷y
n÷2 15693965
n÷3 10462643.333333
n÷3 7846982.5
n÷5 6277586

Exponentiation

ny
n2 985202149684900
n3 3.0923456110159E+22
n4 9.7062327574375E+29
n5 3.0465855435415E+37

Nth Root

y√n
2√n 5602.4931949981
3√n 315.44299809977
4√n 74.849804241548
5√n 31.575667129284

Divisors of 31387930

1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 9151, 18302, 45755, 64057, 91510, 128114, 320285, 448399, 640570, 896798, 2241995, 3138793, 4483990, 6277586, 15693965, 31387930

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31387929
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31387930 can be divided by 32 positive divisors. The sum of these divisors (counting 31387930) is 1, the average is 0.03125.

Base conversion 31387930

Base System Value
2 Binary 1110111101111000100011010
3 Ternary 2012001200010221
4 Quaternary 1313233010122
5 Quinary 31013403210
6 Senary 3040430254
8 Octal 167570432
10 Decimal 31387930
12 Duodecimal a61838a
16 Hexadecimal 1def11a
20 Vigesimal 9g39ga
36 Base36 ior2y

Cryptographic Hash Functions

md5 e91848c282398b34da94aabd08ce340f
sha1 c14e9d3b2c809b5e12b9ab4d7aa096d0fd783493
sha256 618a834ff9d8df27e90178b6a308808a3d5e9dbda7b75ff650a8d7a1a5aa8627
sha512 b10bea472d0ec30b2b81460152e4fb7df976b864fbfaf74940cab42e65b676801595079eee802052ea36d87136b8db50534c21d7cacd171f945b3cf8debfec2c
ripemd-160 9ae730e948714fd91074ef4352f263d865a5bddc

31387930 as geometric shapes

Circle

Radius = n
Diameter 62775860
Circumference 197216180.59878
Area 3.095103835751E+15

Sphere

Radius = n
Volume 1.2953187005238E+23
Surface area 1.2380415343004E+16
Circumference 197216180.59878

Square

Length = n
Perimeter 125551720
Area 985202149684900
Diagonal 44389236.300817

Cube

Length = n
Surface area 5911212898109400
Volume 3.0923456110159E+22
Space diagonal 54365489.504415

Equilateral Triangle

Length = n
Perimeter 94163790
Area 4.2660504474508E+14
Altitude 27182744.752208

Triangular Pyramid

Length = n
Surface area 4.2660504474508E+14
Volume 3.644364252203E+21
Height 14796412.100272