31191388 (number)

31191388 is an even 8-digits composite number following 31191387 and preceding 31191389. In scientific notation, it is written as 3.1191388 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors. There are 14774832 positive integers (up to 31191388) that are relatively prime to 31191388.

Interesting facts

Basic properties

Name

Name thirty-one million one hundred ninety-one thousand three hundred eighty-eight

Notation

Scientific notation 3.1191388 × 10^7
Engineering notation 3.1191388 × 10^6

Prime Factorization of 31191388

Prime Factorization 2 × 2 × 19 × 410413

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 15595694
Product of the distinct prime numbers

The prime factorization of 31191388 is 2 × 2 × 19 × 410413. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 1, 40, 28, 53, 970, 8115, 4374, 22608, 65684, 471585, 403267, 1044236, 415302, 36835088, 62177823, 489528490, 612296291, 5552662339, 3721494158

Basic calculations (n = 31191388)

Multiplication

n×y
n×2 62382776
n×3 93574164
n×4 124765552
n×5 155956940

Division

n÷y
n÷2 15595694
n÷3 10397129.333333
n÷3 7797847
n÷5 6238277.6

Exponentiation

ny
n2 972902685366544
n3 3.034618514551E+22
n4 9.4653963519343E+29
n5 2.9523885018697E+37

Nth Root

y√n
2√n 5584.9250666415
3√n 314.78321524925
4√n 74.732356223001
5√n 31.53602420064

Divisors of 31191388

1, 2, 4, 19, 38, 76, 410413, 820826, 1641652, 7797847, 15595694, 31191388

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31191387
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31191388 can be divided by 12 positive divisors. The sum of these divisors (counting 31191388) is 1, the average is 0.083333333333333.

Base conversion 31191388

Base System Value
2 Binary 1110110111111000101011100
3 Ternary 2011200200112121
4 Quaternary 1312333011130
5 Quinary 30441111023
6 Senary 3032312324
8 Octal 166770534
10 Decimal 31191388
12 Duodecimal a5426a4
16 Hexadecimal 1dbf15c
20 Vigesimal 9eii98
36 Base36 ikjfg

Cryptographic Hash Functions

md5 8032b033b1a8b670c98f05f468a0ab22
sha1 5d886a5ece339686cb2c8712646b9e638c4889fd
sha256 107e3fa5eece9863a91084fdded16b1e9339cb99ed641f282ed4c5c03a8eab56
sha512 7b41473ad19ea4585718a32fac5b8eb29100057ca93672604a0dbd625cd80e25c93ed36e8c8c8909492000dbe106423d1128eb2324937d04178b03f8449282e4
ripemd-160 828517a312e08dd928b259f39d2193db8b37848b

31191388 as geometric shapes

Circle

Radius = n
Diameter 62382776
Circumference 195981270.79214
Area 3.0564639290053E+15

Sphere

Radius = n
Volume 1.2711380309015E+23
Surface area 1.2225855716021E+16
Circumference 195981270.79214

Square

Length = n
Perimeter 124765552
Area 972902685366544
Diagonal 44111283.938841

Cube

Length = n
Surface area 5837416112199264
Volume 3.034618514551E+22
Space diagonal 54025068.774594

Equilateral Triangle

Length = n
Perimeter 93574164
Area 4.2127922046876E+14
Altitude 27012534.387297

Triangular Pyramid

Length = n
Surface area 4.2127922046876E+14
Volume 3.5763322165887E+21
Height 14703761.312947