1621385 is an odd 7-digits composite number following 1621384
and preceding 1621386 . In scientific notation, it is written as 1.621385 × 10^6.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 1238688 positive integers (up to 1621385) that are relatively prime to 1621385.
1621385 has 8 divisors, whose sum is 1709376
The reverse of 1621385 is 5831261
Previous prime number is 115
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 26
Digital Root 8
Name
one million six hundred twenty-one thousand three hundred eighty-five
Scientific notation
1.621385 × 10^6
Engineering notation
1.621385 × 10^6
Prime Factorization
23 × 115 × 613
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1621385
Product of the distinct prime numbers
The prime factorization of 1621385 is 23 × 115 × 613.
Since it has a total of 3 prime factors.
3 , 8 , 25 , 72 , 810 , 360 , 2022 , 3671 , 89233 , 16756 , 188895 , 119502 , 4053306 , 7483750 , 26409556 , 78977465 , 9391643 , 667348953 , 9065354934 , 1818022874
n×2
3242770
n×3
4864155
n×4
6485540
n×5
8106925
n÷2
810692.5
n÷3
540461.66666667
n÷3
405346.25
n÷5
324277
n2
2628889318225
n3
4262441707230241625
n4
6.9110590474775E+24
n5
1.1205487473694E+31
2 √n
1273.3361692813
3 √n
117.47948940316
4 √n
35.6838362467
5 √n
17.457306228197
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
-1621384
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 1621385 can be divided by 8 positive divisors.
The sum of these divisors (counting 1621385) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001011110110001001
3
Ternary
10001101010022
4
Quaternary
12023312021
5
Quinary
403341020
6
Senary
54430225
8
Octal
6136611
10
Decimal
1621385
12
Duodecimal
662375
16
Hexadecimal
18bd89
20
Vigesimal
a2d95
36
Base36
yr2h
md5
68dadd106cf668458d49e86c9a86378d
sha1
9ef66d6c6fd4d9eb256dd16e94bd97047b7b1060
sha256
6a3f7aa4d4f472397747adca111dcba69083ffabde57c74c6d55a6e193fa867e
sha512
9c65e65cc8a8701141a2775da5ee45f91cb06fb78d145ab84dd490d2b0b814f0c7a318daa06fbb0175d11a3922faf19777de8ae95d21dac25dd08c9b975f138a
ripemd-160
ad807e59752e761e57a6cf2fd48e43ae49b1ae29
Diameter
3242770
Circumference
10187462.409281
Area
8258899369236.3
Volume
1.7854474071719E+19
Surface area
33035597476945
Circumference
10187462.409281
Perimeter
6485540
Area
2628889318225
Diagonal
2292984.6568283
Surface area
15773335909350
Volume
4262441707230241625
Space diagonal
2808321.1986301
Perimeter
4864155
Area
1138342466660.2
Altitude
1404160.599315
Surface area
1138342466660.2
Volume
5.0233357259914E+17
Height
764328.21894277