138789021 is an odd 9-digits composite number following 138789020
and preceding 138789022 . In scientific notation, it is written as 1.38789021 × 10^8.
The sum of its digits is 39. It has a total of 4 prime factors and 12 positive divisors.
There are 79307928 positive integers (up to 138789021) that are relatively prime to 138789021.
138789021 has 12 divisors, whose sum is 215264832
The reverse of 138789021 is 120987831
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 39
Digital Root 3
Name
one hundred thirty-eight million seven hundred eighty-nine thousand twenty-one
Scientific notation
1.38789021 × 10^8
Engineering notation
1.38789021 × 10^6
Prime Factorization
3 × 7 × 7 × 944143
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
19827003
Product of the distinct prime numbers
The prime factorization of 138789021 is 3 × 7 × 7 × 944143.
Since it has a total of 4 prime factors.
10 , 4 , 95 , 56 , 806 , 433 , 8925 , 9450 , 20104 , 6547 , 140207 , 891038 , 7597599 , 9628159 , 75149349 , 74406298 , 78709177 , 922785871 , 1734771961 , 5690001452
n×2
277578042
n×3
416367063
n×4
555156084
n×5
693945105
n÷2
69394510.5
n÷3
46263007
n÷3
34697255.25
n÷5
27757804.2
n2
19262392350138441
n3
2.6734085763936E+24
n4
3.7103975905067E+32
n5
5.1496244910719E+40
2 √n
11780.875222156
3 √n
517.74792946282
4 √n
108.5397402897
5 √n
42.508034311898
1 , 3 , 7 , 21 , 49 , 147 , 944143 , 2832429 , 6609001 , 19827003 , 46263007 , 138789021
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-138789020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138789021 can be divided by 12 positive divisors.
The sum of these divisors (counting 138789021) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1000010001011100000010011101
3
Ternary
100200011012202010
4
Quaternary
20101130002131
5
Quinary
241012222041
6
Senary
21434421433
8
Octal
1021340235
10
Decimal
138789021
12
Duodecimal
3a591879
16
Hexadecimal
845c09d
20
Vigesimal
2378cb1
36
Base36
2amqal
md5
69dc5b27d1ec2d06a02985031fc0adfd
sha1
e8f2eaba3720c34b247b003c53e3f403076d1ec5
sha256
b8a71263df15bfe789d5d2b7dd6ca2e7fd7325e282928988c73609c8759ecb85
sha512
471ae0f5968721dc7ce3a8527007708abb62a2c0acd88fec575a819f48de771027e21163914cbd43b5b4e87616cfb482939fdad585299f5f2a9856c6c3852f0e
ripemd-160
21d150614b55241e95742ec1f60ec84dcf455082
Diameter
277578042
Circumference
872037137.54504
Area
6.0514590297759E+16
Volume
1.1198347658189E+25
Surface area
2.4205836119104E+17
Circumference
872037137.54504
Perimeter
555156084
Area
19262392350138441
Diagonal
196277315.80668
Surface area
115574354100830646
Volume
2.6734085763936E+24
Space diagonal
240389635.90474
Perimeter
416367063
Area
8.3408605564415E+15
Altitude
120194817.95237
Surface area
8.3408605564415E+15
Volume
3.1506422220837E+23
Height
65425771.935561