121428879 is an odd 9-digits composite number following 121428878
and preceding 121428880 . In scientific notation, it is written as 1.21428879 × 10^8.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 67932000 positive integers (up to 121428879) that are relatively prime to 121428879.
121428879 has 16 divisors, whose sum is 190210944
The reverse of 121428879 is 978824121
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
one hundred twenty-one million four hundred twenty-eight thousand eight hundred seventy-nine
Scientific notation
1.21428879 × 10^8
Engineering notation
1.21428879 × 10^6
Prime Factorization
3 × 13 × 11 × 283051
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
121428879
Product of the distinct prime numbers
The prime factorization of 121428879 is 3 × 13 × 11 × 283051.
Since it has a total of 4 prime factors.
1 , 10 , 92 , 42 , 97 , 385 , 8081 , 9171 , 65911 , 57199 , 284252 , 356143 , 914419 , 8254304 , 53990094 , 65522934 , 41671161 , 571148590 , 7767744882 , 8644995474
n×2
242857758
n×3
364286637
n×4
485715516
n×5
607144395
n÷2
60714439.5
n÷3
40476293
n÷3
30357219.75
n÷5
24285775.8
n2
14744972655196641
n3
1.7904655004062E+24
n4
2.174142186025E+32
n5
2.6400364843562E+40
2 √n
11019.477256204
3 √n
495.19242799103
4 √n
104.97369792574
5 √n
41.387042893848
1 , 3 , 11 , 13 , 33 , 39 , 143 , 429 , 283051 , 849153 , 3113561 , 3679663 , 9340683 , 11038989 , 40476293 , 121428879
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-121428878
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 121428879 can be divided by 16 positive divisors.
The sum of these divisors (counting 121428879) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111001111001101101110001111
3
Ternary
22110111020002220
4
Quaternary
13033031232033
5
Quinary
222041211004
6
Senary
20014350423
8
Octal
717155617
10
Decimal
121428879
12
Duodecimal
347bb413
16
Hexadecimal
73cdb8f
20
Vigesimal
1hiic3j
36
Base36
20an4f
md5
a288c1a37f8dbd457a1d0043d2774c2e
sha1
af9f26aa97452d5bfd6429859ea3ee08184716d2
sha256
598eb9a97dce5554ca9c3737d1ab8f738f79d814681471218ae308bade069281
sha512
c9c97c433a1d03cc29c2e95ea62241691d9a865be2eb33e95751fb251229e0f0fe8d4d2900595475bf87736eb8abb0b382196a8d8b77cade1baceabae4ea73a2
ripemd-160
4b77f3e1d814e9093a87959a1d75964355187575
Diameter
242857758
Circumference
762960148.40009
Area
4.6322697770948E+16
Volume
7.4998843501094E+24
Surface area
1.8529079108379E+17
Circumference
762960148.40009
Perimeter
485715516
Area
14744972655196641
Diagonal
171726367.54556
Surface area
88469835931179846
Volume
1.7904655004062E+24
Space diagonal
210320987.93413
Perimeter
364286637
Area
6.3847604487536E+15
Altitude
105160493.96707
Surface area
6.3847604487536E+15
Volume
2.1100838280296E+23
Height
57242122.515187