2168157421 is an odd 10-digits composite number following 2168157420
and preceding 2168157422 . In scientific notation, it is written as 2.168157421 × 10^9.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 2093393344 positive integers (up to 2168157421) that are relatively prime to 2168157421.
2168157421 has 4 divisors, whose sum is 2242921500
The reverse of 2168157421 is 1247518612
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 37
Digital Root 1
Name
two billion one hundred sixty-eight million one hundred fifty-seven thousand four hundred twenty-one
Scientific notation
2.168157421 × 10^9
Engineering notation
2.168157421 × 10^9
Prime Factorization
29 × 74764049
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2168157421
Product of the distinct prime numbers
The prime factorization of 2168157421 is 29 × 74764049.
Since it has a total of 2 prime factors.
9 , 4 , 100 , 28 , 155 , 878 , 5571 , 4645 , 19280 , 28198 , 905976 , 848287 , 9440357 , 6024965 , 50067118 , 46059489 , 884588338 , 606933855 , 7760149698 , 8480378578
n×2
4336314842
n×3
6504472263
n×4
8672629684
n×5
10840787105
n÷2
1084078710.5
n÷3
722719140.33333
n÷3
542039355.25
n÷5
433631484.2
n2
4700906602237371241
n3
1.0192305535069E+28
n4
2.2098522882959E+37
n5
4.7913076381826E+46
2 √n
46563.47732934
3 √n
1294.2860504139
4 √n
215.78572086526
5 √n
73.657701460323
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
-2168157420
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 2168157421 can be divided by 4 positive divisors.
The sum of these divisors (counting 2168157421) is 1, the average is 0.25.
Base
System
Value
2
Binary
10000001001110110111010011101101
3
Ternary
12121002202210211201
4
Quaternary
2001032313103231
5
Quinary
13420022014141
6
Senary
555051045501
8
Octal
20116672355
10
Decimal
2168157421
12
Duodecimal
506140891
16
Hexadecimal
813b74ed
20
Vigesimal
1dhajdb1
36
Base36
zuv4z1
md5
e6daa2c4332b2c3430f928457be8a523
sha1
39372e6c7ca0089f6b9107b7541e39216026440b
sha256
81e87cb065238da36d636ea66f1366e6934ccec87044cb354e8c47beba914ec8
sha512
3fe7aeb8ce0b8da44484472f1b5096de2d8299395693dd37765ff08c3ffee617ce9c633a5265261033b603739e705537b001fe92d7d47f771117dd6036035a6d
ripemd-160
c2ed27e1f299ae4d1783021f6f5470cdd76c4d9e
Diameter
4336314842
Circumference
13622934851.28
Area
1.4768333646801E+19
Volume
4.2693429589487E+28
Surface area
5.9073334587203E+19
Circumference
13622934851.28
Perimeter
8672629684
Area
4700906602237371241
Diagonal
3066237630.1381
Surface area
2.8205439613424E+19
Volume
1.0192305535069E+28
Space diagonal
3755358811.9795
Perimeter
6504472263
Area
2.0355522691778E+18
Altitude
1877679405.9898
Surface area
2.0355522691778E+18
Volume
1.2011747266287E+27
Height
1022079210.046