1211389988 is an even 10-digits composite number following 1211389987
and preceding 1211389989 . In scientific notation, it is written as 1.211389988 × 10^9.
The sum of its digits is 50. It has a total of 4 prime factors and 12 positive divisors.
There are 605041152 positive integers (up to 1211389988) that are relatively prime to 1211389988.
1211389988 has 12 divisors, whose sum is 2122220940
The reverse of 1211389988 is 8899831121
Previous prime number is 929
Is Prime? no Number parity even Number length 10 Sum of Digits 50 Digital Root 5
Name
one billion two hundred eleven million three hundred eighty-nine thousand nine hundred eighty-eight
Scientific notation
1.211389988 × 10^9
Engineering notation
1.211389988 × 10^9
Prime Factorization
2 × 2 × 929 × 325993
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
605694994 Product of the distinct prime numbers
The prime factorization of 1211389988 is 2 × 2 × 929 × 325993.
Since it has a total of 4 prime factors.
1 , 7 , 64 , 16 , 124 , 205 , 8892 , 6408 , 89371 , 64900 , 923481 , 27324 , 3276934 , 4075178 , 81803045 , 74956327 , 264550696 , 134247329 , 5860569550 , 8330064498
n×2
2422779976
n×3
3634169964
n×4
4845559952
n×5
6056949940
n÷2
605694994
n÷3
403796662.66667
n÷3
302847497
n÷5
242277997.6
n2
1467465703026640144
n3
1.7776732603799E+27
n4
2.1534555895595E+36
n5
2.608674540795E+45
2 √n34805.02819996
3 √n1066.0101176253
4 √n186.56105756551
5 √n65.562694811087
1 , 2 , 4 , 929 , 1858 , 3716 , 325993 , 651986 , 1303972 , 302847497 , 605694994 , 1211389988
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1211389987 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1211389988 can be divided by 12 positive divisors.
The sum of these divisors (counting 1211389988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001000001101000101100000100100
3
Ternary
10010102102222122212
4
Quaternary
1020031011200210
5
Quinary
4440103434423
6
Senary
320112142552
8
Octal
11015054044
10
Decimal
1211389988
12
Duodecimal
299837a58
16
Hexadecimal
48345824
20
Vigesimal
iib3ej8
36
Base36
k18ahw
md5
efcf0e3426fdf8b060d190b2ff79d62b
sha1
afb1688c3bc14d2a3b64229f36e766a1b7336fac
sha256
7f2ccb4e6036a28416cbfe18ea225d79818798407b1fec54589c5c39f13bd3e1
sha512
e4e81f963b329a2e7fc57c4964bd12d7880cc0f6ba3e6d5780e6b91fad084708a06f1bc91a6d2869bf1e37c25e1a60cc506e2329680cd28e8b5c42c4027a3f05
ripemd-160
43b36ac064ebc0f635f5c54363f72fd24233d511
Diameter
2422779976
Circumference
7611387773.8661
Area
4.6101794720235E+18
Volume
7.4463003403898E+27
Surface area
1.8440717888094E+19
Circumference
7611387773.8661
Perimeter
4845559952
Area
1467465703026640144
Diagonal
1713164150.3526
Surface area
8804794218159840864
Volume
1.7776732603799E+27
Space diagonal
2098189006.9963
Perimeter
3634169964
Area
6.3543128900173E+17
Altitude
1049094503.4981
Surface area
6.3543128900173E+17
Volume
2.095008028581E+26
Height
571054716.78419