121837986 is an even 9-digits composite number following 121837985
and preceding 121837987 . In scientific notation, it is written as 1.21837986 × 10^8.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 40612644 positive integers (up to 121837986) that are relatively prime to 121837986.
121837986 has 16 divisors, whose sum is 270751200
The reverse of 121837986 is 689738121
Previous prime number is 3
Is Prime? no
Number parity even
Number length 9
Sum of Digits 45
Digital Root 9
Name
one hundred twenty-one million eight hundred thirty-seven thousand nine hundred eighty-six
Scientific notation
1.21837986 × 10^8
Engineering notation
1.21837986 × 10^6
Prime Factorization
2 × 9 × 3 × 2256259
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
121837986
Product of the distinct prime numbers
The prime factorization of 121837986 is 2 × 9 × 3 × 2256259.
Since it has a total of 4 prime factors.
3 , 2 , 17 , 57 , 795 , 194 , 8146 , 5015 , 64368 , 89213 , 559619 , 47142 , 2331870 , 2900160 , 41131612 , 664529 , 814874123 , 237360221 , 9795482337 , 6518364476
n×2
243675972
n×3
365513958
n×4
487351944
n×5
609189930
n÷2
60918993
n÷3
40612662
n÷3
30459496.5
n÷5
24367597.2
n2
14844494832536196
n3
1.8086233535836E+24
n4
2.2035902683319E+32
n5
2.6848100026276E+40
2 √n
11038.024551522
3 √n
495.74792352897
4 √n
105.06200336716
5 √n
41.414892870204
1 , 2 , 3 , 6 , 9 , 18 , 27 , 54 , 2256259 , 4512518 , 6768777 , 13537554 , 20306331 , 40612662 , 60918993 , 121837986
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
-121837985
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 121837986 can be divided by 16 positive divisors.
The sum of these divisors (counting 121837986) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111010000110001100110100010
3
Ternary
22111021000022000
4
Quaternary
13100301212202
5
Quinary
222142303421
6
Senary
20031224430
8
Octal
720614642
10
Decimal
121837986
12
Duodecimal
34978116
16
Hexadecimal
74319a2
20
Vigesimal
1i19ej6
36
Base36
20jesi
md5
ee893941795c0ec355721713549882b6
sha1
94c2e18ebf53090f18aed407bf551613429e9286
sha256
27ecdace6e90a8088da61cc692a8a5b0d0abbece472bb66ddd9b8d133aa5a3d8
sha512
fdd4d213ad3fec988c3e9ac95a56f723549fca936419e7dd287c5b8376332cad36c69af8ebf07ce19d912d820468117c361cb35a60c0a0d8f91512346db25e0f
ripemd-160
722388f4184881fb6b89d25e3f47373c78796975
Diameter
243675972
Circumference
765530643.49155
Area
4.6635355912147E+16
Volume
7.575943787639E+24
Surface area
1.8654142364859E+17
Circumference
765530643.49155
Perimeter
487351944
Area
14844494832536196
Diagonal
172304932.21342
Surface area
89066968995217176
Volume
1.8086233535836E+24
Space diagonal
211029582.04387
Perimeter
365513958
Area
6.4278548156616E+15
Altitude
105514791.02193
Surface area
6.4278548156616E+15
Volume
2.1314830632189E+23
Height
57434977.404474