1989870 is an even 7-digits composite number following 1989869
and preceding 1989871 . In scientific notation, it is written as 1.989870 × 10^6.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 502560 positive integers (up to 1989870) that are relatively prime to 1989870.
1989870 has 16 divisors, whose sum is 3645648
The reverse of 1989870 is 0789891
Previous prime number is 57
Is Prime? no
Number parity even
Number length 7
Sum of Digits 42
Digital Root 6
Name
one million nine hundred eighty-nine thousand eight hundred seventy
Scientific notation
1.989870 × 10^6
Engineering notation
1.989870 × 10^6
Prime Factorization
2 × 5 × 57 × 3491
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1989870
Product of the distinct prime numbers
The prime factorization of 1989870 is 2 × 5 × 57 × 3491.
Since it has a total of 4 prime factors.
5 , 5 , 76 , 90 , 846 , 705 , 2564 , 9967 , 81889 , 620 , 848036 , 539542 , 1840750 , 1160997 , 68991643 , 84308400 , 593633953 , 318550835 , 3212598750 , 8649079085
n×2
3979740
n×3
5969610
n×4
7959480
n×5
9949350
n÷2
994935
n÷3
663290
n÷3
497467.5
n÷5
397974
n2
3959582616900
n3
7879054661890803000
n4
1.5678294500057E+25
n5
3.1197767876828E+31
2 √n
1410.6275199357
3 √n
125.77902816826
4 √n
37.558321580386
5 √n
18.187162236799
1 , 2 , 5 , 10 , 57 , 114 , 285 , 570 , 3491 , 6982 , 17455 , 34910 , 198987 , 397974 , 994935 , 1989870
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
-1989869
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 1989870 can be divided by 16 positive divisors.
The sum of these divisors (counting 1989870) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111100101110011101110
3
Ternary
10202002120220
4
Quaternary
13211303232
5
Quinary
1002133440
6
Senary
110352210
8
Octal
7456356
10
Decimal
1989870
12
Duodecimal
7bb666
16
Hexadecimal
1e5cee
20
Vigesimal
c8eda
36
Base36
16ne6
md5
bf1365e2e0e273f9f5ca05db544927c3
sha1
cda6489d4e288cbd1ec3e4554bc050f29e7a3e6f
sha256
1de51ad53e55c6fdccd751f3fbdf2b82214b8056c3582c3994adc998da7b7c48
sha512
df94fc25cc8dda9fb09bfb7817f10645eb23af19b48871cf80ddea4432d547917d3882bd5efee3395d60286595061e9f726c34e7bd891d3d3c64152604e65143
ripemd-160
29f9dcec6f436b607413d8bbb4421ece5f6e865a
Diameter
3979740
Circumference
12502721.947197
Area
12439395660535
Volume
3.3003706990705E+19
Surface area
49757582642140
Circumference
12502721.947197
Perimeter
7959480
Area
3959582616900
Diagonal
2814101.1413594
Surface area
23757495701400
Volume
7879054661890803000
Space diagonal
3446555.9404571
Perimeter
5969610
Area
1714549567309.3
Altitude
1723277.9702285
Surface area
1714549567309.3
Volume
9.2855549679374E+17
Height
938033.71378645