121387986 (number)

121387986 is an even 9-digits composite number following 121387985 and preceding 121387987. In scientific notation, it is written as 1.21387986 × 10^8. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 40462656 positive integers (up to 121387986) that are relatively prime to 121387986.

Interesting facts

Basic properties

Name

Name one hundred twenty-one million three hundred eighty-seven thousand nine hundred eighty-six

Notation

Scientific notation 1.21387986 × 10^8
Engineering notation 1.21387986 × 10^6

Prime Factorization of 121387986

Prime Factorization 2 × 9 × 6743777

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 121387986
Product of the distinct prime numbers

The prime factorization of 121387986 is 2 × 9 × 6743777. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 6, 65, 6, 454, 606, 4541, 3744, 88315, 44339, 6659, 372662, 1535541, 9661185, 92122038, 53751534, 608571599, 581778763, 6233404587, 8536564701

Basic calculations (n = 121387986)

Multiplication

n×y
n×2 242775972
n×3 364163958
n×4 485551944
n×5 606939930

Division

n÷y
n÷2 60693993
n÷3 40462662
n÷3 30346996.5
n÷5 24277597.2

Exponentiation

ny
n2 14735043145136196
n3 1.7886572110112E+24
n4 2.1712149648903E+32
n5 2.6355941176109E+40

Nth Root

y√n
2√n 11017.621612671
3√n 495.136833919
4√n 104.9648589418
5√n 41.38425497653

Divisors of 121387986

1, 2, 9, 18, 6743777, 13487554, 60693993, 121387986

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -121387985
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 121387986 can be divided by 8 positive divisors. The sum of these divisors (counting 121387986) is 1, the average is 0.125.

Base conversion 121387986

Base System Value
2 Binary 111001111000011101111010010
3 Ternary 22110102011000100
4 Quaternary 13033003233102
5 Quinary 222033403421
6 Senary 20013433230
8 Octal 717035722
10 Decimal 121387986
12 Duodecimal 3479b816
16 Hexadecimal 73c3bd2
20 Vigesimal 1hid9j6
36 Base36 209rki

Cryptographic Hash Functions

md5 73d646cf7ad53914ab3462947f751e93
sha1 45cfd43e004ed76b86c9d1a15de18c96af76768f
sha256 0e22d40e496c1a9f19de51c521f61d8914bc3cd8a0a43ec641e39d72c52dce18
sha512 30cd02823b3e00c906908e3f7c115b1d285f761dba383b946ca38d20468090ce0333df5efdb83f2c478633779b38851dd0b3f1dfec6ee7890ebe9a11b5be29fc
ripemd-160 08a251277c85283420bbcc17c5289153d049bb6f

121387986 as geometric shapes

Circle

Radius = n
Diameter 242775972
Circumference 762703210.10332
Area 4.6291503295089E+16

Sphere

Radius = n
Volume 7.4923098052042E+24
Surface area 1.8516601318035E+17
Circumference 762703210.10332

Square

Length = n
Perimeter 485551944
Area 14735043145136196
Diagonal 171668536.11036

Cube

Length = n
Surface area 88410258870817176
Volume 1.7886572110112E+24
Space diagonal 210250159.18046

Equilateral Triangle

Length = n
Perimeter 364163958
Area 6.3804608447738E+15
Altitude 105125079.59023

Triangular Pyramid

Length = n
Surface area 6.3804608447738E+15
Volume 2.1079527385404E+23
Height 57222845.370118