1221000856 is an even 10-digits composite number following 1221000855
and preceding 1221000857 . In scientific notation, it is written as 1.221000856 × 10^9.
The sum of its digits is 25. It has a total of 5 prime factors and 16 positive divisors.
There are 598981344 positive integers (up to 1221000856) that are relatively prime to 1221000856.
1221000856 has 16 divisors, whose sum is 2332573200
The reverse of 1221000856 is 6580001221
Previous prime number is 53
Is Prime? no
Number parity even
Number length 10
Sum of Digits 25
Digital Root 7
Name
one billion two hundred twenty-one million eight hundred fifty-six
Scientific notation
1.221000856 × 10^9
Engineering notation
1.221000856 × 10^9
Prime Factorization
2 × 2 × 2 × 53 × 2879719
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
305250214
Product of the distinct prime numbers
The prime factorization of 1221000856 is 2 × 2 × 2 × 53 × 2879719.
Since it has a total of 5 prime factors.
2 , 8 , 4 , 15 , 944 , 61 , 267 , 2477 , 85624 , 45157 , 861355 , 875426 , 7815100 , 246866 , 23476520 , 28591564 , 82215350 , 670593658 , 4769499775 , 9427619940
n×2
2442001712
n×3
3663002568
n×4
4884003424
n×5
6105004280
n÷2
610500428
n÷3
407000285.33333
n÷3
305250214
n÷5
244200171.2
n2
1490843090352732736
n3
1.8203206894824E+27
n4
2.2226131200525E+36
n5
2.7138125221409E+45
2 √n
34942.822667896
3 √n
1068.8218482026
4 √n
186.92999402957
5 √n
65.666397864526
1 , 2 , 4 , 8 , 53 , 106 , 212 , 424 , 2879719 , 5759438 , 11518876 , 23037752 , 152625107 , 305250214 , 610500428 , 1221000856
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
-1221000855
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 1221000856 can be divided by 16 positive divisors.
The sum of these divisors (counting 1221000856) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001000110001101111111010011000
3
Ternary
10011002112021021221
4
Quaternary
1020301233322120
5
Quinary
10000034011411
6
Senary
321054141424
8
Octal
11061577230
10
Decimal
1221000856
12
Duodecimal
2a0ab1874
16
Hexadecimal
48c6fe98
20
Vigesimal
j1b522g
36
Base36
k6yaag
md5
3113b63a63ada3de485c5b054522b162
sha1
19f1262156e4eab8f8f9093bfa535fbc358dad46
sha256
d974cef8f0d6e794bef92a92b4c8bafd68705bac4878f747bd2b4f66d65b2af0
sha512
3fd50b06c4318d4d1950ef2e65a8632ba063991f4d5590dd77a687e40cb94b86ff929a75d38daa1ec03f6cfffe2a7f916cd9aca1ab852dca0d36a5bb1f06acab
ripemd-160
8cb782fa8e4652edb04e10f1bbbd7c9acb26b6e7
Diameter
2442001712
Circumference
7671774638.4729
Area
4.6836217003072E+18
Volume
7.6249414736738E+27
Surface area
1.8734486801229E+19
Circumference
7671774638.4729
Perimeter
4884003424
Area
1490843090352732736
Diagonal
1726755970.2244
Surface area
8945058542116396416
Volume
1.8203206894824E+27
Space diagonal
2114835518.6771
Perimeter
3663002568
Area
6.4555399465098E+17
Altitude
1057417759.3385
Surface area
6.4555399465098E+17
Volume
2.1452685057786E+26
Height
575585323.40812