2155156971 is an odd 10-digits composite number following 2155156970
and preceding 2155156972 . In scientific notation, it is written as 2.155156971 × 10^9.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 1249365920 positive integers (up to 2155156971) that are relatively prime to 2155156971.
2155156971 has 16 divisors, whose sum is 3271069440
The reverse of 2155156971 is 1796515512
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 42
Digital Root 6
Name
two billion one hundred fifty-five million one hundred fifty-six thousand nine hundred seventy-one
Scientific notation
2.155156971 × 10^9
Engineering notation
2.155156971 × 10^9
Prime Factorization
3 × 11 × 23 × 2839469
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2155156971
Product of the distinct prime numbers
The prime factorization of 2155156971 is 3 × 11 × 23 × 2839469.
Since it has a total of 4 prime factors.
7 , 1 , 22 , 76 , 245 , 100 , 5733 , 7141 , 79393 , 40239 , 311340 , 522817 , 3238356 , 2721295 , 81973510 , 75709153 , 288875267 , 285466710 , 2185435857 , 3380386840
n×2
4310313942
n×3
6465470913
n×4
8620627884
n×5
10775784855
n÷2
1077578485.5
n÷3
718385657
n÷3
538789242.75
n÷5
431031394.2
n2
4644701569649894841
n3
1.0010060966046E+28
n4
2.1573252671108E+37
n5
4.6493745881283E+46
2 √n
46423.668219993
3 √n
1291.6939809102
4 √n
215.46152375771
5 √n
73.569157311972
1 , 3 , 11 , 23 , 33 , 69 , 253 , 759 , 2839469 , 8518407 , 31234159 , 65307787 , 93702477 , 195923361 , 718385657 , 2155156971
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
-2155156970
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 2155156971 can be divided by 16 positive divisors.
The sum of these divisors (counting 2155156971) is 1, the average is 0.0625.
Base
System
Value
2
Binary
10000000011101010001010111101011
3
Ternary
12120012022022120120
4
Quaternary
2000131101113223
5
Quinary
13403210010341
6
Senary
553504254323
8
Octal
20035212753
10
Decimal
2155156971
12
Duodecimal
5019113a3
16
Hexadecimal
807515eb
20
Vigesimal
1dd9ec8b
36
Base36
zn4hrf
md5
d152a832b1ec28a64377b6d3a7f8851e
sha1
a74c5b88ac9974c350d4b02dc1e6f0569a072c2e
sha256
4b569fe7372f603f766fc26c06f88ccaa822a3f90bb7662d04ad56fbd3a2d5b7
sha512
3029158dfb5e0b29bfc12d35cf2e4ee6a7ea0fe7763e50752448fa29f199d789bb4e3b82c7dbc200dcc4be4b8a0e3223731a9f363f768d4f9d225156f9ef5b41
ripemd-160
e04dcae6803f7be09e5c8f646af6c44262445b45
Diameter
4310313942
Circumference
13541250614.853
Area
1.4591760329329E+19
Volume
4.1930045323886E+28
Surface area
5.8367041317316E+19
Circumference
13541250614.853
Perimeter
8620627884
Area
4644701569649894841
Diagonal
3047852217.4311
Surface area
2.7868209417899E+19
Volume
1.0010060966046E+28
Space diagonal
3732841372.0582
Perimeter
6465470913
Area
2.0112147761571E+18
Altitude
1866420686.0291
Surface area
2.0112147761571E+18
Volume
1.1796969981969E+27
Height
1015950739.1437