31561921 (number)

31561921 is an odd 8-digits composite number following 31561920 and preceding 31561922. In scientific notation, it is written as 3.1561921 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 31548244 positive integers (up to 31561921) that are relatively prime to 31561921.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 3.1561921 × 10^7
Engineering notation 3.1561921 × 10^6

Prime Factorization of 31561921

Prime Factorization 10739 × 2939

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 31561921
Product of the distinct prime numbers

The prime factorization of 31561921 is 10739 × 2939. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 5, 4, 65, 678, 48, 4138, 2434, 14733, 83988, 750255, 895761, 5103290, 6441081, 4598684, 77166200, 963056370, 680847328, 195347800, 9063508864

Basic calculations (n = 31561921)

Multiplication

n×y
n×2 63123842
n×3 94685763
n×4 126247684
n×5 157809605

Division

n÷y
n÷2 15780960.5
n÷3 10520640.333333
n÷3 7890480.25
n÷5 6312384.2

Exponentiation

ny
n2 996154857210241
n3 3.1440560907036E+22
n4 9.9232449954356E+29
n5 3.1319667460958E+37

Nth Root

y√n
2√n 5617.9997330011
3√n 316.02478374757
4√n 74.953317024673
5√n 31.610596101561

Divisors of 31561921

1, 2939, 10739, 31561921

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 -31561920
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 31561921 can be divided by 4 positive divisors. The sum of these divisors (counting 31561921) is 1, the average is 0.25.

Base conversion 31561921

Base System Value
2 Binary 1111000011001100011000001
3 Ternary 2012101111211001
4 Quaternary 1320121203001
5 Quinary 31034440141
6 Senary 3044252001
8 Octal 170314301
10 Decimal 31561921
12 Duodecimal a6a1001
16 Hexadecimal 1e198c1
20 Vigesimal 9h54g1
36 Base36 ishc1

Cryptographic Hash Functions

md5 32da875b5dcf924575450d0c1a95acfd
sha1 c6c603541b41a00b789300921912de5f86c00554
sha256 8691f293b38c5a80e8039866d35ee6208b6a2006f3328b65240ab721d4e29638
sha512 8c090d3bcd2fa90c9529ecb7f447bcb83ddc1dfc99c971fbf4fccd9a70f6e5941629660ab4418602dd35aec0169105df5cf0a36fd14111b913c8a664a168bb6b
ripemd-160 0d22f14567f31f2e4edffc2a22a6a4565eb52b66

31561921 as geometric shapes

Circle

Radius = n
Diameter 63123842
Circumference 198309398.29356
Area 3.1295127812495E+15

Sphere

Radius = n
Volume 1.3169791356038E+23
Surface area 1.2518051124998E+16
Circumference 198309398.29356

Square

Length = n
Perimeter 126247684
Area 996154857210241
Diagonal 44635296.732748

Cube

Length = n
Surface area 5976929143261446
Volume 3.1440560907036E+22
Space diagonal 54666850.756475

Equilateral Triangle

Length = n
Perimeter 94685763
Area 4.3134770622366E+14
Altitude 27333425.378238

Triangular Pyramid

Length = n
Surface area 4.3134770622366E+14
Volume 3.7053056369456E+21
Height 14878432.244249