21031637 is an odd 8-digits composite number following 21031636
and preceding 21031638 . In scientific notation, it is written as 2.1031637 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 18078720 positive integers (up to 21031637) that are relatively prime to 21031637.
21031637 has 16 divisors, whose sum is 24216192
The reverse of 21031637 is 73613012
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million thirty-one thousand six hundred thirty-seven
Scientific notation
2.1031637 × 10^7
Engineering notation
2.1031637 × 10^6
Prime Factorization
11 × 23 × 97 × 857
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21031637
Product of the distinct prime numbers
The prime factorization of 21031637 is 11 × 23 × 97 × 857.
Since it has a total of 4 prime factors.
10 , 8 , 75 , 86 , 405 , 218 , 9582 , 9401 , 70410 , 96813 , 899691 , 891361 , 323470 , 4474026 , 6867673 , 62020005 , 602664572 , 818428241 , 1245157980 , 7981733189
n×2
42063274
n×3
63094911
n×4
84126548
n×5
105158185
n÷2
10515818.5
n÷3
7010545.6666667
n÷3
5257909.25
n÷5
4206327.4
n2
442329754899769
n3
9.3029188393509E+21
n4
1.9565561206969E+29
n5
4.1149578100625E+36
2 √n
4586.0262755462
3 √n
276.03089428727
4 √n
67.720205814411
5 √n
29.145708397309
1 , 11 , 23 , 97 , 253 , 857 , 1067 , 2231 , 9427 , 19711 , 24541 , 83129 , 216821 , 914419 , 1911967 , 21031637
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
-21031636
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 21031637 can be divided by 16 positive divisors.
The sum of these divisors (counting 21031637) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001110101011010101
3
Ternary
1110120111222112
4
Quaternary
1100032223111
5
Quinary
20341003022
6
Senary
2030440405
8
Octal
120165325
10
Decimal
21031637
12
Duodecimal
7063105
16
Hexadecimal
140ead5
20
Vigesimal
6b8j1h
36
Base36
cis45
md5
2065d989e668622bf24e7de3d9311297
sha1
16b78180458d61dfe9c1f715cf0bef1f67dc1e99
sha256
7a5bbabbf9a390098c7e17a8f68ab7340c5511144586511694da022049ed9889
sha512
c40cd7f6862f71bfb73025af9440254c1a01529323f70d74f82703129d6f9ad4511fa38438d725ddbfa0f8ec918cc0fad82815dd15beb84eef64c574913ea345
ripemd-160
2e315243e322792d0f1b19eb55e74323b29bf4bb
Diameter
42063274
Circumference
132145672.58433
Area
1.3896199084573E+15
Volume
3.8967975310196E+22
Surface area
5.5584796338292E+15
Circumference
132145672.58433
Perimeter
84126548
Area
442329754899769
Diagonal
29743226.284308
Surface area
2653978529398614
Volume
9.3029188393509E+21
Space diagonal
36427863.850345
Perimeter
63094911
Area
1.9153440229647E+14
Altitude
18213931.925173
Surface area
1.9153440229647E+14
Volume
1.0963594993555E+21
Height
9914408.7614359