31906721 (number)

31906721 is an odd 8-digits composite number following 31906720 and preceding 31906722. In scientific notation, it is written as 3.1906721 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 24451200 positive integers (up to 31906721) that are relatively prime to 31906721.

Interesting facts

Basic properties

Name

Name thirty-one million nine hundred six thousand seven hundred twenty-one

Notation

Scientific notation 3.1906721 × 10^7
Engineering notation 3.1906721 × 10^6

Prime Factorization of 31906721

Prime Factorization 11 × 7 × 61 × 6793

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 31906721
Product of the distinct prime numbers

The prime factorization of 31906721 is 11 × 7 × 61 × 6793. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 5, 11, 9, 181, 976, 6888, 1149, 81043, 74254, 510445, 370433, 6426240, 1884191, 45633522, 77081749, 219786502, 853483630, 1107773338, 7915917590

Basic calculations (n = 31906721)

Multiplication

n×y
n×2 63813442
n×3 95720163
n×4 127626884
n×5 159533605

Division

n÷y
n÷2 15953360.5
n÷3 10635573.666667
n÷3 7976680.25
n÷5 6381344.2

Exponentiation

ny
n2 1018038844971841
n3 3.2482281393679E+22
n4 1.0364030898716E+30
n5 3.3068224232071E+37

Nth Root

y√n
2√n 5648.6034557225
3√n 317.17142853851
4√n 75.157191643398
5√n 31.679362607899

Divisors of 31906721

1, 7, 11, 61, 77, 427, 671, 4697, 6793, 47551, 74723, 414373, 523061, 2900611, 4558103, 31906721

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31906720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31906721 can be divided by 16 positive divisors. The sum of these divisors (counting 31906721) is 1, the average is 0.0625.

Base conversion 31906721

Base System Value
2 Binary 1111001101101101110100001
3 Ternary 2020001000210102
4 Quaternary 1321231232201
5 Quinary 31132003341
6 Senary 3055512145
8 Octal 171555641
10 Decimal 31906721
12 Duodecimal a828655
16 Hexadecimal 1e6dba1
20 Vigesimal 9j86g1
36 Base36 izvdt

Cryptographic Hash Functions

md5 d0cf86ea4024d4e777503f8893c8e651
sha1 3abeeb4143b7e0a7224733f12cc38290442eb3c8
sha256 d36e85b172751135cb866f865db8ef791dd96675d7ea7c937b78eccb849e485c
sha512 3ce5fe09e6e402417fb4e5ad9796acbb2f46f85800fd912a061335676447c26cb47c4208141a473a4ebad4fda374d8a44577f0c802ce994a5a240b684c38e30c
ripemd-160 7fd34d2f091a692735200764ff00f4ce3000fcdc

31906721 as geometric shapes

Circle

Radius = n
Diameter 63813442
Circumference 200475840.58748
Area 3.1982633564326E+15

Sphere

Radius = n
Volume 1.3606146213096E+23
Surface area 1.279305342573E+16
Circumference 200475840.58748

Square

Length = n
Perimeter 127626884
Area 1018038844971841
Diagonal 45122917.569054

Cube

Length = n
Surface area 6108233069831046
Volume 3.2482281393679E+22
Space diagonal 55264061.874925

Equilateral Triangle

Length = n
Perimeter 95720163
Area 4.4082375089249E+14
Altitude 27632030.937462

Triangular Pyramid

Length = n
Surface area 4.4082375089249E+14
Volume 3.8280735736466E+21
Height 15040972.523018