31128561 (number)

31128561 is an odd 8-digits composite number following 31128560 and preceding 31128562. In scientific notation, it is written as 3.1128561 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors. There are 20321280 positive integers (up to 31128561) that are relatively prime to 31128561.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 3.1128561 × 10^7
Engineering notation 3.1128561 × 10^6

Prime Factorization of 31128561

Prime Factorization 3 × 3 × 181 × 197 × 97

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10376187
Product of the distinct prime numbers

The prime factorization of 31128561 is 3 × 3 × 181 × 197 × 97. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 6, 95, 64, 974, 185, 5565, 6693, 26696, 49553, 697448, 893596, 3013515, 469262, 9529382, 22430649, 775544882, 238131215, 1759765115, 7858999536

Basic calculations (n = 31128561)

Multiplication

n×y
n×2 62257122
n×3 93385683
n×4 124514244
n×5 155642805

Division

n÷y
n÷2 15564280.5
n÷3 10376187
n÷3 7782140.25
n÷5 6225712.2

Exponentiation

ny
n2 968987309930721
n3 3.0163180585404E+22
n4 9.3893640680678E+29
n5 2.9227739214406E+37

Nth Root

y√n
2√n 5579.2975364288
3√n 314.57172334193
4√n 74.694695503956
5√n 31.523309716356

Divisors of 31128561

1, 3, 9, 97, 181, 197, 291, 543, 591, 873, 1629, 1773, 17557, 19109, 35657, 52671, 57327, 106971, 158013, 171981, 320913, 3458729, 10376187, 31128561

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31128560
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31128561 can be divided by 24 positive divisors. The sum of these divisors (counting 31128561) is 1, the average is 0.041666666666667.

Base conversion 31128561

Base System Value
2 Binary 1110110101111101111110001
3 Ternary 2011120111100200
4 Quaternary 1312233233301
5 Quinary 30432103221
6 Senary 3031105413
8 Octal 166575761
10 Decimal 31128561
12 Duodecimal a512269
16 Hexadecimal 1dafbf1
20 Vigesimal 9eb181
36 Base36 ij6y9

Cryptographic Hash Functions

md5 9fc2ec73eec4b1bd4e7f580957c7920c
sha1 237469870bd01e4ef4e52ec5d8cbfc5a225666a2
sha256 6820a4be20eaed59367055d260b06f368aee19cb3589fd678aa07f1a8a8d98e3
sha512 7e03e8c6ff9eff7001b481b0529da34464bb6a8c2ea1bcfe4d0b25313507191a9c3b2c402c268cee5de46044710d3f8e7288483d0223ebb6e80392390100d3fe
ripemd-160 b25276652494985aa5fb879537d366b01ae012fc

31128561 as geometric shapes

Circle

Radius = n
Diameter 62257122
Circumference 195586517.10884
Area 3.0441634143001E+15

Sphere

Radius = n
Volume 1.2634723538134E+23
Surface area 1.21766536572E+16
Circumference 195586517.10884

Square

Length = n
Perimeter 124514244
Area 968987309930721
Diagonal 44022433.143358

Cube

Length = n
Surface area 5813923859584326
Volume 3.0163180585404E+22
Space diagonal 53916249.218507

Equilateral Triangle

Length = n
Perimeter 93385683
Area 4.1958381317237E+14
Altitude 26958124.609254

Triangular Pyramid

Length = n
Surface area 4.1958381317237E+14
Volume 3.554764922349E+21
Height 14674144.381119