168090987 is an odd 9-digits composite number following 168090986
and preceding 168090988 . In scientific notation, it is written as 1.68090987 × 10^8.
The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors.
There are 112060656 positive integers (up to 168090987) that are relatively prime to 168090987.
168090987 has 4 divisors, whose sum is 224121320
The reverse of 168090987 is 789090861
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 48
Digital Root 3
Name
one hundred sixty-eight million ninety thousand nine hundred eighty-seven
Scientific notation
1.68090987 × 10^8
Engineering notation
1.68090987 × 10^6
Prime Factorization
3 × 56030329
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
168090987
Product of the distinct prime numbers
The prime factorization of 168090987 is 3 × 56030329.
Since it has a total of 2 prime factors.
10 , 5 , 9 , 78 , 708 , 419 , 4802 , 3021 , 43721 , 54638 , 232928 , 597340 , 1680919 , 5497098 , 36787491 , 88600935 , 731886896 , 905341690 , 4911660370 , 7418330581
n×2
336181974
n×3
504272961
n×4
672363948
n×5
840454935
n÷2
84045493.5
n÷3
56030329
n÷3
42022746.75
n÷5
33618197.4
n2
28254579910634169
n3
4.7493402244489E+24
n4
7.9832128592641E+32
n5
1.3419061289448E+41
2 √n
12964.990821439
3 √n
551.88443088335
4 √n
113.86391360497
5 √n
44.168117090742
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
-168090986
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 168090987 can be divided by 4 positive divisors.
The sum of these divisors (counting 168090987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001001101110101101011
3
Ternary
102201021220111010
4
Quaternary
22001031311223
5
Quinary
321012402422
6
Senary
24402435003
8
Octal
1201156553
10
Decimal
168090987
12
Duodecimal
48362a63
16
Hexadecimal
a04dd6b
20
Vigesimal
2cab797
36
Base36
2s2ru3
md5
79e05e6dd7f4123c4c15721aedaa3ff8
sha1
f28fe7b27451e5d6587032ff48f90d22b378e563
sha256
ef6f97df944539322d593270f7a7c9b402aff5ea26cd293e08b8b83fd80beea4
sha512
2c0906ef8b43f9392f69492fdcb0eab9e14d3d56a28724ed04e97ba69ca83e08e898f416c460c8a91a7cc89b7b3538d3b014c79ea5af7a172d2eae859add863d
ripemd-160
11f68e5b66d5afb05bffa22fe2831f1ba34edd17
Diameter
336181974
Circumference
1056146819.7877
Area
8.8764380677514E+16
Volume
1.9893989811369E+25
Surface area
3.5505752271006E+17
Circumference
1056146819.7877
Perimeter
672363948
Area
28254579910634169
Diagonal
237716553.52808
Surface area
169527479463805014
Volume
4.7493402244489E+24
Space diagonal
291142129.7784
Perimeter
504272961
Area
1.2234591987933E+16
Altitude
145571064.8892
Surface area
1.2234591987933E+16
Volume
5.5971511314497E+23
Height
79238851.176027