138897 is an odd 6-digits composite number following 138896
and preceding 138898 . In scientific notation, it is written as 1.38897 × 10^5.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 79200 positive integers (up to 138897) that are relatively prime to 138897.
138897 has 8 divisors, whose sum is 188480
The reverse of 138897 is 798831
Previous prime number is 759
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 36
Digital Root 9
Name
one hundred thirty-eight thousand eight hundred ninety-seven
Scientific notation
1.38897 × 10^5
Engineering notation
1.38897 × 10^3
Prime Factorization
3 × 759 × 61
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
138897
Product of the distinct prime numbers
The prime factorization of 138897 is 3 × 759 × 61.
Since it has a total of 3 prime factors.
2 , 5 , 53 , 96 , 264 , 526 , 3183 , 5299 , 25287 , 50052 , 244144 , 15976 , 9552585 , 7115816 , 54736578 , 79226373 , 197044987 , 51611516 , 7159225005 , 9303515330
n×2
277794
n×3
416691
n×4
555588
n×5
694485
n÷2
69448.5
n÷3
46299
n÷3
34724.25
n÷5
27779.4
n2
19292376609
n3
2679653233860273
n4
3.7219579522349E+20
n5
5.1696879369157E+25
2 √n
372.68887828858
3 √n
51.788216537264
4 √n
19.305151599731
5 √n
10.679196387099
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-138896
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138897 can be divided by 8 positive divisors.
The sum of these divisors (counting 138897) is 1, the average is 0.125.
Base
System
Value
2
Binary
100001111010010001
3
Ternary
21001112100
4
Quaternary
201322101
5
Quinary
13421042
6
Senary
2551013
8
Octal
417221
10
Decimal
138897
12
Duodecimal
68469
16
Hexadecimal
21e91
20
Vigesimal
h74h
36
Base36
2z69
md5
281012acfe74769bb5123dd3d8770405
sha1
55d762cea82caf09f54231527619dab7eb3b266b
sha256
6ba09728a7712ef6a440b27292f243739639f0310078708dc085d9979715b7fe
sha512
29896ac76e4675c1717e4dcf25525c4c8c8d3468d8481d404f2a38d09388e717667d5aa9a0594872423dd3b7aca21bfaca9432f1c89bb5551e0772d1b32689c5
ripemd-160
4809cf88481c57b7d1b32aa3d0eb8f361538c47b
Diameter
277794
Circumference
872715.58961132
Area
60608788625.122
Volume
1.1224505218218E+16
Surface area
242435154500.49
Circumference
872715.58961132
Perimeter
555588
Area
19292376609
Diagonal
196430.02117294
Surface area
115754259654
Volume
2679653233860273
Space diagonal
240576.66101889
Perimeter
416691
Area
8353844121.3853
Altitude
120288.33050945
Surface area
8353844121.3853
Volume
3.1580016214851E+14
Height
65476.673724312