121387989 (number)

121387989 is an odd 9-digits composite number following 121387988 and preceding 121387990. In scientific notation, it is written as 1.21387989 × 10^8. The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors. There are 80925324 positive integers (up to 121387989) that are relatively prime to 121387989.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.21387989 × 10^8
Engineering notation 1.21387989 × 10^6

Prime Factorization of 121387989

Prime Factorization 3 × 40462663

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 121387989
Product of the distinct prime numbers

The prime factorization of 121387989 is 3 × 40462663. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 2, 76, 74, 799, 656, 4253, 4136, 60618, 23422, 621084, 495654, 639503, 6139073, 95481103, 57454933, 332626198, 192632921, 1100759859, 8588267600

Basic calculations (n = 121387989)

Multiplication

n×y
n×2 242775978
n×3 364163967
n×4 485551956
n×5 606939945

Division

n÷y
n÷2 60693994.5
n÷3 40462663
n÷3 30346997.25
n÷5 24277597.8

Exponentiation

ny
n2 14735043873464121
n3 1.7886573436266E+24
n4 2.1712151795291E+32
n5 2.6355944432931E+40

Nth Root

y√n
2√n 11017.621748817
3√n 495.13683799796
4√n 104.96485959033
5√n 41.384255181085

Divisors of 121387989

1, 3, 40462663, 121387989

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 -121387988
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 121387989 can be divided by 4 positive divisors. The sum of these divisors (counting 121387989) is 1, the average is 0.25.

Base conversion 121387989

Base System Value
2 Binary 111001111000011101111010101
3 Ternary 22110102011000110
4 Quaternary 13033003233111
5 Quinary 222033403424
6 Senary 20013433233
8 Octal 717035725
10 Decimal 121387989
12 Duodecimal 3479b819
16 Hexadecimal 73c3bd5
20 Vigesimal 1hid9j9
36 Base36 209rkl

Cryptographic Hash Functions

md5 ce93e7c430321966b3aa461a2e011ddf
sha1 a20ac049119e02c4bec6ef91a5d0de2b975e4870
sha256 7d940957513a152248a15681573cac2d5254390dbbb71e4bc5d627ea6a7961b9
sha512 ec10a7a047152d4e8fa9c00d053a7a6e2a176e55d9a3c16297fcd2766f9d3debfbe547e393ab4edc1d76372db774ade38ea60a4ef0aa159e897423e4d590a248
ripemd-160 5f0d37143430c271308737d6c0313fc174d77cf6

121387989 as geometric shapes

Circle

Radius = n
Diameter 242775978
Circumference 762703228.95288
Area 4.6291505583198E+16

Sphere

Radius = n
Volume 7.4923103607023E+24
Surface area 1.8516602233279E+17
Circumference 762703228.95288

Square

Length = n
Perimeter 485551956
Area 14735043873464121
Diagonal 171668540.353

Cube

Length = n
Surface area 88410263240784726
Volume 1.7886573436266E+24
Space diagonal 210250164.37661

Equilateral Triangle

Length = n
Perimeter 364163967
Area 6.3804611601491E+15
Altitude 105125082.18831

Triangular Pyramid

Length = n
Surface area 6.3804611601491E+15
Volume 2.1079528948291E+23
Height 57222846.784332