121777891 is an odd 9-digits composite number following 121777890
and preceding 121777892 . In scientific notation, it is written as 1.21777891 × 10^8.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 121674112 positive integers (up to 121777891) that are relatively prime to 121777891.
121777891 has 4 divisors, whose sum is 121881672
The reverse of 121777891 is 198777121
Previous prime number is 1187
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 43
Digital Root 7
Name
one hundred twenty-one million seven hundred seventy-seven thousand eight hundred ninety-one
Scientific notation
1.21777891 × 10^8
Engineering notation
1.21777891 × 10^6
Prime Factorization
1187 × 102593
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
121777891
Product of the distinct prime numbers
The prime factorization of 121777891 is 1187 × 102593.
Since it has a total of 2 prime factors.
2 , 4 , 72 , 5 , 341 , 532 , 8084 , 8362 , 94692 , 32192 , 552199 , 86103 , 5541244 , 6217387 , 66057099 , 88451611 , 457968953 , 154783242 , 6744172720 , 1586055935
n×2
243555782
n×3
365333673
n×4
487111564
n×5
608889455
n÷2
60888945.5
n÷3
40592630.333333
n÷3
30444472.75
n÷5
24355578.2
n2
14829854736407881
n3
1.8059484336361E+24
n4
2.1992459150296E+32
n5
2.6781952932267E+40
2 √n
11035.302034833
3 √n
495.66640305534
4 √n
105.04904585399
5 √n
41.410806592603
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
-121777890
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 121777891 can be divided by 4 positive divisors.
The sum of these divisors (counting 121777891) is 1, the average is 0.25.
Base
System
Value
2
Binary
111010000100010111011100011
3
Ternary
22111010221212021
4
Quaternary
13100202323203
5
Quinary
222133343031
6
Senary
20030042311
8
Octal
720427343
10
Decimal
121777891
12
Duodecimal
34949397
16
Hexadecimal
7422ee3
20
Vigesimal
1i124eb
36
Base36
20i4f7
md5
e3ae6f380902692d27d73df86f832e07
sha1
df3540415816d33e6095897d80067c0b36e3d2fa
sha256
7d462036057e28a62d98b8cb50f2bb4677dcedf47921f96be498eba7418ebbd3
sha512
f536c69765a5d8de55712cdb98bb8de4689e146f83c74a7c8fa95dfdea94aad6b5782ba0c6a05f1d8879ab85b0a306fe7e8e4015bdd34462afa93243ca84afad
ripemd-160
47bbc356ee9613d90e2f4381e829be275c88e745
Diameter
243555782
Circumference
765153055.47052
Area
4.6589362693703E+16
Volume
7.5647391091643E+24
Surface area
1.8635745077481E+17
Circumference
765153055.47052
Perimeter
487111564
Area
14829854736407881
Diagonal
172219945.04939
Surface area
88979128418447286
Volume
1.8059484336361E+24
Space diagonal
210925494.45058
Perimeter
365333673
Area
6.4215154680811E+15
Altitude
105462747.22529
Surface area
6.4215154680811E+15
Volume
2.1283306398289E+23
Height
57406648.349797