121586987 is an odd 9-digits composite number following 121586986
and preceding 121586988 . In scientific notation, it is written as 1.21586987 × 10^8.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 121560336 positive integers (up to 121586987) that are relatively prime to 121586987.
121586987 has 4 divisors, whose sum is 121613640
The reverse of 121586987 is 789685121
Previous prime number is 20809
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 47
Digital Root 2
Name
one hundred twenty-one million five hundred eighty-six thousand nine hundred eighty-seven
Scientific notation
1.21586987 × 10^8
Engineering notation
1.21586987 × 10^6
Prime Factorization
20809 × 5843
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
121586987
Product of the distinct prime numbers
The prime factorization of 121586987 is 20809 × 5843.
Since it has a total of 2 prime factors.
6 , 9 , 77 , 57 , 932 , 174 , 8543 , 7610 , 94302 , 52882 , 612195 , 37224 , 4389460 , 347690 , 62967088 , 63163347 , 274904310 , 456939571 , 8088036307 , 9273895390
n×2
243173974
n×3
364760961
n×4
486347948
n×5
607934935
n÷2
60793493.5
n÷3
40528995.666667
n÷3
30396746.75
n÷5
24317397.4
n2
14783395407738169
n3
1.7974685052565E+24
n4
2.1854877978153E+32
n5
2.6572687646163E+40
2 √n
11026.648946983
3 √n
495.40725862119
4 √n
105.00785183491
5 √n
41.397814988936
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
-121586986
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 121586987 can be divided by 4 positive divisors.
The sum of these divisors (counting 121586987) is 1, the average is 0.25.
Base
System
Value
2
Binary
111001111110100010100101011
3
Ternary
22110210020222202
4
Quaternary
13033310110223
5
Quinary
222111240422
6
Senary
20022010415
8
Octal
717642453
10
Decimal
121586987
12
Duodecimal
34876a0b
16
Hexadecimal
73f452b
20
Vigesimal
1hji797
36
Base36
20e14b
md5
35b0349683465a0313e71f16dd4d1efe
sha1
c7a16976d3482251487fcff5bf43711d30da8b3c
sha256
cd7f2898ba3e64a7b7b198bcf943d59ccf9ef7b5b72827b4ce6e1c3f2b104209
sha512
f1eb0390ace1a674d2e743da625e4950678f83004918876b7a2d2e7186c7e69ed8aca37801c6862eb5de35b9ca990132cbdacbae8bc50ecbb72dd7d6a1b10c18
ripemd-160
ccbf0f61306e8e9f49cf70258478e3a4682d2f46
Diameter
243173974
Circumference
763953570.26264
Area
4.6443406408063E+16
Volume
7.5292184682305E+24
Surface area
1.8577362563225E+17
Circumference
763953570.26264
Perimeter
486347948
Area
14783395407738169
Diagonal
171949966.02348
Surface area
88700372446429014
Volume
1.7974685052565E+24
Space diagonal
210594839.02322
Perimeter
364760961
Area
6.4013979886457E+15
Altitude
105297419.51161
Surface area
6.4013979886457E+15
Volume
2.1183369483936E+23
Height
57316655.34116