121905908 (number)

121905908 is an even 9-digits composite number following 121905907 and preceding 121905909. In scientific notation, it is written as 1.21905908 × 10^8. The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors. There are 58851072 positive integers (up to 121905908) that are relatively prime to 121905908.

Interesting facts

Basic properties

Name

Name one hundred twenty-one million nine hundred five thousand nine hundred eight

Notation

Scientific notation 1.21905908 × 10^8
Engineering notation 1.21905908 × 10^6

Prime Factorization of 121905908

Prime Factorization 2 × 2 × 29 × 1050913

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 60952954
Product of the distinct prime numbers

The prime factorization of 121905908 is 2 × 2 × 29 × 1050913. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 8, 81, 21, 695, 201, 8815, 9393, 76507, 64896, 823386, 730488, 1782596, 3324468, 72946247, 54256740, 902824391, 770934090, 9784470442, 8108460470

Basic calculations (n = 121905908)

Multiplication

n×y
n×2 243811816
n×3 365717724
n×4 487623632
n×5 609529540

Division

n÷y
n÷2 60952954
n÷3 40635302.666667
n÷3 30476477
n÷5 24381181.6

Exponentiation

ny
n2 14861050405304464
n3 1.8116498434924E+24
n4 2.20850819149E+32
n5 2.6923019640903E+40

Nth Root

y√n
2√n 11041.100850912
3√n 495.84002927348
4√n 105.07664274667
5√n 41.419509419418

Divisors of 121905908

1, 2, 4, 29, 58, 116, 1050913, 2101826, 4203652, 30476477, 60952954, 121905908

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -121905907
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 121905908 can be divided by 12 positive divisors. The sum of these divisors (counting 121905908) is 1, the average is 0.083333333333333.

Base conversion 121905908

Base System Value
2 Binary 111010001000010001011110100
3 Ternary 22111101110110122
4 Quaternary 13101002023310
5 Quinary 222201442113
6 Senary 20032511112
8 Octal 721021364
10 Decimal 121905908
12 Duodecimal 349ab498
16 Hexadecimal 74422f4
20 Vigesimal 1i1i4f8
36 Base36 20kv78

Cryptographic Hash Functions

md5 9902b4cf23ea097f59c1edcf76380029
sha1 a30356fc9a6b3bfc9d03a0272487e646aeac92a4
sha256 ab785d36b81ead08094b592aeecdad87e9717991657ab82ac1d1b7066000b8f3
sha512 d3c3a5d21851246aa91121ed88ab1623c5a4aae041f2b9fc0a89b70a492f4743312c52a894f732b5957e292e32353bd79b585e19aae98d760960e29e21077c8f
ripemd-160 d2d8418d6744877f6e680feed2d9f6f7fdfb173f

121905908 as geometric shapes

Circle

Radius = n
Diameter 243811816
Circumference 765957410.00399
Area 4.6687366777932E+16

Sphere

Radius = n
Volume 7.5886211189238E+24
Surface area 1.8674946711173E+17
Circumference 765957410.00399

Square

Length = n
Perimeter 487623632
Area 14861050405304464
Diagonal 172400988.42701

Cube

Length = n
Surface area 89166302431826784
Volume 1.8116498434924E+24
Space diagonal 211147226.39882

Equilateral Triangle

Length = n
Perimeter 365717724
Area 6.4350235889573E+15
Altitude 105573613.19941

Triangular Pyramid

Length = n
Surface area 6.4350235889573E+15
Volume 2.1350498157817E+23
Height 57466996.142336