12156987 is an odd 8-digits composite number following 12156986
and preceding 12156988 . In scientific notation, it is written as 1.2156987 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 8025768 positive integers (up to 12156987) that are relatively prime to 12156987.
12156987 has 8 divisors, whose sum is 16367104
The reverse of 12156987 is 78965121
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twelve million one hundred fifty-six thousand nine hundred eighty-seven
Scientific notation
1.2156987 × 10^7
Engineering notation
1.2156987 × 10^6
Prime Factorization
3 × 103 × 39343
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12156987
Product of the distinct prime numbers
The prime factorization of 12156987 is 3 × 103 × 39343.
Since it has a total of 3 prime factors.
1 , 2 , 5 , 1 , 904 , 196 , 5651 , 5285 , 15161 , 66081 , 353751 , 174367 , 99144 , 5401532 , 59617686 , 24625752 , 767942611 , 525269409 , 457581122 , 695224289
n×2
24313974
n×3
36470961
n×4
48627948
n×5
60784935
n÷2
6078493.5
n÷3
4052329
n÷3
3039246.75
n÷5
2431397.4
n2
147792332918169
n3
1.7967094699859E+21
n4
2.1842573669395E+28
n5
2.6553988414538E+35
2 √n
3486.687109564
3 √n
229.93688879625
4 √n
59.048176174748
5 √n
26.119519930061
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
-12156986
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 12156987 can be divided by 8 positive divisors.
The sum of these divisors (counting 12156987) is 1, the average is 0.125.
Base
System
Value
2
Binary
101110011000000000111011
3
Ternary
211212122020210
4
Quaternary
232120000323
5
Quinary
11103010422
6
Senary
1112322203
8
Octal
56300073
10
Decimal
12156987
12
Duodecimal
40a3363
16
Hexadecimal
b9803b
20
Vigesimal
3fjc97
36
Base36
78ke3
md5
675ed0bdc6876e27722e1e61b2e3d527
sha1
577957b22df662bebb213fe08d53ffad7b970f06
sha256
48f1289190ebf4e4dd92d2c3cba03e2b72dd214892b9d537e481c2baddddf846
sha512
09409d6b7f4bcce66d0a4d61868da6b78ffbc2c1e7736611bb09943f595779832561f5385cc3f01ff5971865cded0258a0d2718afe34b4ca5e492c02a7fef446
ripemd-160
6dfdcab3eea2ae1208cfd9401395413b14c0054c
Diameter
24313974
Circumference
76384602.097973
Area
4.6430330735262E+14
Volume
7.5260390287237E+21
Surface area
1.8572132294105E+15
Circumference
76384602.097973
Perimeter
48627948
Area
147792332918169
Diagonal
17192575.892993
Surface area
886753997509014
Volume
1.7967094699859E+21
Space diagonal
21056519.150954
Perimeter
36470961
Area
63995957395851
Altitude
10528259.575477
Surface area
63995957395851
Volume
2.1174424167485E+20
Height
5730858.6309978