121897989 (number)

121897989 is an odd 9-digits composite number following 121897988 and preceding 121897990. In scientific notation, it is written as 1.21897989 × 10^8. The sum of its digits is 54. It has a total of 3 prime factors and 8 positive divisors. There are 80644200 positive integers (up to 121897989) that are relatively prime to 121897989.

Interesting facts

Basic properties

Name

Name one hundred twenty-one million eight hundred ninety-seven thousand nine hundred eighty-nine

Notation

Scientific notation 1.21897989 × 10^8
Engineering notation 1.21897989 × 10^6

Prime Factorization of 121897989

Prime Factorization 9 × 131 × 103391

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 121897989
Product of the distinct prime numbers

The prime factorization of 121897989 is 9 × 131 × 103391. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 3, 47, 22, 994, 380, 7982, 8493, 44795, 76628, 789850, 315063, 5570238, 4105751, 85177827, 66631049, 769703688, 252293207, 8594151762, 2099943040

Basic calculations (n = 121897989)

Multiplication

n×y
n×2 243795978
n×3 365693967
n×4 487591956
n×5 609489945

Division

n÷y
n÷2 60948994.5
n÷3 40632663
n÷3 30474497.25
n÷5 24379597.8

Exponentiation

ny
n2 14859119722244121
n3 1.8112968124518E+24
n4 2.2079343891998E+32
n5 2.691427618874E+40

Nth Root

y√n
2√n 11040.742230484
3√n 495.82929246211
4√n 105.0749362621
5√n 41.418971283698

Divisors of 121897989

1, 9, 131, 1179, 103391, 930519, 13544221, 121897989

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 -121897988
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 121897989 can be divided by 8 positive divisors. The sum of these divisors (counting 121897989) is 1, the average is 0.125.

Base conversion 121897989

Base System Value
2 Binary 111010001000000010000000101
3 Ternary 22111101001121100
4 Quaternary 13101000100011
5 Quinary 222201213424
6 Senary 20032410313
8 Octal 721002005
10 Decimal 121897989
12 Duodecimal 349a6999
16 Hexadecimal 7440405
20 Vigesimal 1i1h4j9
36 Base36 20kp39

Cryptographic Hash Functions

md5 3259d09da1142fd26d82dbf64b963145
sha1 63b2b90e93af90a82d563afacc15e548ab2aa6bb
sha256 3ad8587d7c233ccef223afd604613b8782bb8840542d752ec4d9bb3080a66a3f
sha512 e9ee9433313f78dec34008f58ca34a0970be01a2dc349f2d71a19cbc88cf1bef99f1865c8c6f63199fcf00811fd12364ae8be0fb2a1ae282c17f31a5ca1028b4
ripemd-160 b8a17112d766eb4b9ef3683880bb342e53bf7b1a

121897989 as geometric shapes

Circle

Radius = n
Diameter 243795978
Circumference 765907653.45954
Area 4.6681301358213E+16

Sphere

Radius = n
Volume 7.5871423459589E+24
Surface area 1.8672520543285E+17
Circumference 765907653.45954

Square

Length = n
Perimeter 487591956
Area 14859119722244121
Diagonal 172389789.26981

Cube

Length = n
Surface area 89154718333464726
Volume 1.8112968124518E+24
Space diagonal 211133510.28847

Equilateral Triangle

Length = n
Perimeter 365693967
Area 6.4341875786689E+15
Altitude 105566755.14424

Triangular Pyramid

Length = n
Surface area 6.4341875786689E+15
Volume 2.1346337647104E+23
Height 57463263.089935