1221388 (number)

1221388 is an even 7-digits composite number following 1221387 and preceding 1221389. In scientific notation, it is written as 1.221388 × 10^6. The sum of its digits is 25. It has a total of 5 prime factors and 24 positive divisors. There are 518400 positive integers (up to 1221388) that are relatively prime to 1221388.

Interesting facts

Basic properties

Name

Name one million two hundred twenty-one thousand three hundred eighty-eight

Notation

Scientific notation 1.221388 × 10^6
Engineering notation 1.221388 × 10^6

Prime Factorization of 1221388

Prime Factorization 2 × 2 × 7 × 181 × 241

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 610694
Product of the distinct prime numbers

The prime factorization of 1221388 is 2 × 2 × 7 × 181 × 241. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 1, 50, 25, 973, 833, 2867, 3955, 62714, 34720, 591691, 313579, 4955035, 2946982, 99264034, 2590662, 796184666, 736058940, 5617383514, 4931712876

Basic calculations (n = 1221388)

Multiplication

n×y
n×2 2442776
n×3 3664164
n×4 4885552
n×5 6106940

Division

n÷y
n÷2 610694
n÷3 407129.33333333
n÷3 305347
n÷5 244277.6

Exponentiation

ny
n2 1491788646544
n3 1822052751425083072
n4 2.2254333659576E+24
n5 2.7181176079802E+30

Nth Root

y√n
2√n 1105.1642411877
3√n 106.89348004139
4√n 33.244010606239
5√n 16.495699242915

Divisors of 1221388

1, 2, 4, 7, 14, 28, 181, 241, 362, 482, 724, 964, 1267, 1687, 2534, 3374, 5068, 6748, 43621, 87242, 174484, 305347, 610694, 1221388

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 -1221387
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 1221388 can be divided by 24 positive divisors. The sum of these divisors (counting 1221388) is 1, the average is 0.041666666666667.

Base conversion 1221388

Base System Value
2 Binary 100101010001100001100
3 Ternary 2022001102121
4 Quaternary 10222030030
5 Quinary 303041023
6 Senary 42102324
8 Octal 4521414
10 Decimal 1221388
12 Duodecimal 4aa9a4
16 Hexadecimal 12a30c
20 Vigesimal 7cd98
36 Base36 q6fg

Cryptographic Hash Functions

md5 96eb33e02d651bda79a2119fa25cb5b6
sha1 956ff370caeef1931b9c2b09361ca4db7629b578
sha256 883f8a99d906e26a86948b95c4aee45e103826627c3f2bb6f470ce88f2815f1c
sha512 e3011af87856dca4f77c6c397211e739690bb8d090016e1fc52d5877491556f130af2852f9619bb07ffc7b5553a254ff9a934d32da11f4e5d75fc7b537f4df06
ripemd-160 c1ed8010cc9e361788b0c4ce79dff5dce48611e5

1221388 as geometric shapes

Circle

Radius = n
Diameter 2442776
Circumference 7674207.1359655
Area 4686592252691.3

Sphere

Radius = n
Volume 7.6321967177735E+18
Surface area 18746369010765
Circumference 7674207.1359655

Square

Length = n
Perimeter 4885552
Area 1491788646544
Diagonal 1727303.4745197

Cube

Length = n
Surface area 8950731879264
Volume 1822052751425083072
Space diagonal 2115506.0717549

Equilateral Triangle

Length = n
Perimeter 3664164
Area 645963432492.15
Altitude 1057753.0358775

Triangular Pyramid

Length = n
Surface area 645963432492.15
Volume 2.1473097603538E+17
Height 575767.82483992