31820961 (number)

31820961 is an odd 8-digits composite number following 31820960 and preceding 31820962. In scientific notation, it is written as 3.1820961 × 10^7. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 20696480 positive integers (up to 31820961) that are relatively prime to 31820961.

Interesting facts

Basic properties

Name

Name thirty-one million eight hundred twenty thousand nine hundred sixty-one

Notation

Scientific notation 3.1820961 × 10^7
Engineering notation 3.1820961 × 10^6

Prime Factorization of 31820961

Prime Factorization 123 × 258707

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 31820961
Product of the distinct prime numbers

The prime factorization of 31820961 is 123 × 258707. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 31820961)

Multiplication

n×y
n×2 63641922
n×3 95462883
n×4 127283844
n×5 159104805

Division

n÷y
n÷2 15910480.5
n÷3 10606987
n÷3 7955240.25
n÷5 6364192.2

Exponentiation

ny
n2 1012573558963521
n3 3.2221063729409E+22
n4 1.0253052123121E+30
n5 3.2626197174078E+37

Nth Root

y√n
2√n 5641.0070909369
3√n 316.88700540784
4√n 75.10663812831
5√n 31.662314489388

Divisors of 31820961

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31820960
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31820961 can be divided by 4 positive divisors. The sum of these divisors (counting 31820961) is 1, the average is 0.25.

Base conversion 31820961

Base System Value
2 Binary 1111001011000110010100001
3 Ternary 2012212200011010
4 Quaternary 1321120302201
5 Quinary 31121232321
6 Senary 3054011133
8 Octal 171306241
10 Decimal 31820961
12 Duodecimal a7a6aa9
16 Hexadecimal 1e58ca1
20 Vigesimal 9ihc81
36 Base36 iy17l

Cryptographic Hash Functions

md5 9d3f67c5384a3a1b38dc82408c4d14f6
sha1 088ef993974cfd38e553b7ddbe8ec1d946bc3cfd
sha256 0e01ba41ab7db7032219dc0a37c89ae65f4dd95b95ad96d081e2de49eac7bd18
sha512 85cab8ca62b5909c6ba4a1ec831e3cbac996db258a593f29d462fa7453c0e1a07338352d182484dd1c0c6124ada4775cbf953f3f0a7e4a165a23be8f611d38ad
ripemd-160 846ddac01508908a7badf4f86e173d27f06ad7ca

31820961 as geometric shapes

Circle

Radius = n
Diameter 63641922
Circumference 199936994.61553
Area 3.1810936540591E+15

Sphere

Radius = n
Volume 1.3496727613755E+23
Surface area 1.2724374616236E+16
Circumference 199936994.61553

Square

Length = n
Perimeter 127283844
Area 1012573558963521
Diagonal 45001634.613945

Cube

Length = n
Surface area 6075441353781126
Volume 3.2221063729409E+22
Space diagonal 55115521.197668

Equilateral Triangle

Length = n
Perimeter 95462883
Area 4.3845721263141E+14
Altitude 27557760.598834

Triangular Pyramid

Length = n
Surface area 4.3845721263141E+14
Volume 3.7972887766849E+21
Height 15000544.871315