12721898 is an even 8-digits composite number following 12721897
and preceding 12721899 . In scientific notation, it is written as 1.2721898 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 5215056 positive integers (up to 12721898) that are relatively prime to 12721898.
12721898 has 16 divisors, whose sum is 22757760
The reverse of 12721898 is 89812721
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twelve million seven hundred twenty-one thousand eight hundred ninety-eight
Scientific notation
1.2721898 × 10^7
Engineering notation
1.2721898 × 10^6
Prime Factorization
2 × 7 × 23 × 39509
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
12721898
Product of the distinct prime numbers
The prime factorization of 12721898 is 2 × 7 × 23 × 39509.
Since it has a total of 4 prime factors.
1 , 2 , 43 , 72 , 123 , 298 , 5226 , 8582 , 27423 , 13536 , 817306 , 339979 , 8050883 , 1766766 , 85386946 , 60611368 , 44203615 , 141331956 , 1839889762 , 5654415652
n×2
25443796
n×3
38165694
n×4
50887592
n×5
63609490
n÷2
6360949
n÷3
4240632.6666667
n÷3
3180474.5
n÷5
2544379.6
n2
161846688722404
n3
2.0589970655642E+21
n4
2.6194350650407E+28
n5
3.3324185715071E+35
2 √n
3566.7769764873
3 √n
233.44467384692
4 √n
59.722499750825
5 √n
26.357874259318
1 , 2 , 7 , 14 , 23 , 46 , 161 , 322 , 39509 , 79018 , 276563 , 553126 , 908707 , 1817414 , 6360949 , 12721898
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
-12721897
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 12721898 can be divided by 16 positive divisors.
The sum of these divisors (counting 12721898) is 1, the average is 0.0625.
Base
System
Value
2
Binary
110000100001111011101010
3
Ternary
212221100011102
4
Quaternary
300201323222
5
Quinary
11224100043
6
Senary
1132401402
8
Octal
60417352
10
Decimal
12721898
12
Duodecimal
4316262
16
Hexadecimal
c21eea
20
Vigesimal
3ja4ei
36
Base36
7koa2
md5
2b55a686da666b54970f59bdcb05cab0
sha1
19615e2787e0814ff896e802b38b5729ba67a9f1
sha256
09030a0526aade77568cc3da402707c34c4e0a6cfd680e0487413dabefe0c380
sha512
7ef9af5b5acb632b4675e5ed55dfd6db439fab0b4cc1e7afe5ec33fb8b7955105b2a72f4b6cdbc5cee08f2007f41c5f9ab68b422231a959d1c51c9bd680ac922
ripemd-160
10d41159471722c2f071d4f134d8557edac2347b
Diameter
25443796
Circumference
79934042.593037
Area
5.0845636829814E+14
Volume
8.6247067399191E+21
Surface area
2.0338254731926E+15
Circumference
79934042.593037
Perimeter
50887592
Area
161846688722404
Diagonal
17991480.690727
Surface area
971080132334424
Volume
2.0589970655642E+21
Space diagonal
22034973.704709
Perimeter
38165694
Area
70081671975997
Altitude
11017486.852354
Surface area
70081671975997
Volume
2.426551312506E+20
Height
5997160.2302424