31386988 (number)

31386988 is an even 8-digits composite number following 31386987 and preceding 31386989. In scientific notation, it is written as 3.1386988 × 10^7. The sum of its digits is 46. It has a total of 4 prime factors and 12 positive divisors. There are 15673392 positive integers (up to 31386988) that are relatively prime to 31386988.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 3.1386988 × 10^7
Engineering notation 3.1386988 × 10^6

Prime Factorization of 31386988

Prime Factorization 2 × 2 × 853 × 9199

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 15693494
Product of the distinct prime numbers

The prime factorization of 31386988 is 2 × 2 × 853 × 9199. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 2, 100, 78, 463, 484, 8616, 1720, 5937, 7934, 150389, 889968, 4450608, 9564091, 78182976, 80559472, 555662079, 580296147, 5012676610, 2404281853

Basic calculations (n = 31386988)

Multiplication

n×y
n×2 62773976
n×3 94160964
n×4 125547952
n×5 156934940

Division

n÷y
n÷2 15693494
n÷3 10462329.333333
n÷3 7846747
n÷5 6277397.6

Exponentiation

ny
n2 985143015712144
n3 3.0920672012441E+22
n4 9.7050676140642E+29
n5 3.0461284074182E+37

Nth Root

y√n
2√n 5602.4091246534
3√n 315.43984242521
4√n 74.849242645824
5√n 31.575477600153

Divisors of 31386988

1, 2, 4, 853, 1706, 3412, 9199, 18398, 36796, 7846747, 15693494, 31386988

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 -31386987
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 31386988 can be divided by 12 positive divisors. The sum of these divisors (counting 31386988) is 1, the average is 0.083333333333333.

Base conversion 31386988

Base System Value
2 Binary 1110111101110110101101100
3 Ternary 2012001121212001
4 Quaternary 1313232311230
5 Quinary 31013340423
6 Senary 3040422044
8 Octal 167566554
10 Decimal 31386988
12 Duodecimal a617924
16 Hexadecimal 1deed6c
20 Vigesimal 9g3798
36 Base36 ioqcs

Cryptographic Hash Functions

md5 a396ab8d60bef2ab1621218ffe22796c
sha1 2b1f984ce41166a8bcf7bfaaf73c5af979992352
sha256 1a954a308d87692a9f11baf1c4681758a091b7778955be67363a02aab9033b3d
sha512 db4727480cd52876f1968a717f4125a6838d367461477da665fa760f4ec3908095333709e45e3cce94258486fcffaa79fef7d7817fc5c77fc57c3c6e4f70d4d8
ripemd-160 5ab2ce78abe5c594e5b387e672b11d1b101d8478

31386988 as geometric shapes

Circle

Radius = n
Diameter 62773976
Circumference 197210261.83822
Area 3.0949180608966E+15

Sphere

Radius = n
Volume 1.2952020805113E+23
Surface area 1.2379672243586E+16
Circumference 197210261.83822

Square

Length = n
Perimeter 125547952
Area 985143015712144
Diagonal 44387904.111642

Cube

Length = n
Surface area 5910858094272864
Volume 3.0920672012441E+22
Space diagonal 54363857.912555

Equilateral Triangle

Length = n
Perimeter 94160964
Area 4.2657943898376E+14
Altitude 27181928.956277

Triangular Pyramid

Length = n
Surface area 4.2657943898376E+14
Volume 3.6440361431403E+21
Height 14795968.037214