397291221 is an odd 9-digits composite number following 397291220
and preceding 397291222 . In scientific notation, it is written as 3.97291221 × 10^8.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 261129960 positive integers (up to 397291221) that are relatively prime to 397291221.
397291221 has 12 divisors, whose sum is 581948640
The reverse of 397291221 is 122192793
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 36
Digital Root 9
Name
three hundred ninety-seven million two hundred ninety-one thousand two hundred twenty-one
Scientific notation
3.97291221 × 10^8
Engineering notation
3.97291221 × 10^6
Prime Factorization
3 × 3 × 71 × 621739
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
132430407
Product of the distinct prime numbers
The prime factorization of 397291221 is 3 × 3 × 71 × 621739.
Since it has a total of 4 prime factors.
3 , 5 , 78 , 37 , 574 , 802 , 5565 , 3275 , 51020 , 38406 , 73358 , 997912 , 6945957 , 7166049 , 48105911 , 93422434 , 870390752 , 510614454 , 4481082732 , 8871176633
n×2
794582442
n×3
1191873663
n×4
1589164884
n×5
1986456105
n÷2
198645610.5
n÷3
132430407
n÷3
99322805.25
n÷5
79458244.2
n2
157840314283670841
n3
6.2708571184783E+25
n4
2.4913564813168E+34
n5
9.8979405840861E+42
2 √n
19932.165486971
3 √n
735.13932663491
4 √n
141.18132131047
5 √n
52.459215746642
1 , 3 , 9 , 71 , 213 , 639 , 621739 , 1865217 , 5595651 , 44143469 , 132430407 , 397291221
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-397291220
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 397291221 can be divided by 12 positive divisors.
The sum of these divisors (counting 397291221) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
10111101011100010111011010101
3
Ternary
1000200120111002200
4
Quaternary
113223202323111
5
Quinary
1303201304341
6
Senary
103231155113
8
Octal
2753427325
10
Decimal
397291221
12
Duodecimal
b1075a99
16
Hexadecimal
17ae2ed5
20
Vigesimal
6431811
36
Base36
6kjbv9
md5
3d8dc3528fa2be75d031967179998b5e
sha1
3aab738387e3a31242efeb0d2ea94c69905565de
sha256
983b00d36b11bdef8b2dcda26f1bb4f312fa46494891aaec6417cdc11c6aa091
sha512
c2d4922e05f3f83fe0c05083a715f1c47cc3cfd51062601cc30672b1435127c1bf383b65a4abe014180f584e516d9a139a9bb4833dfb6799e82d1ffd6fe26b1c
ripemd-160
ebdf502d80618210009f6efbc45ffc88ad2971e8
Diameter
794582442
Circumference
2496254362.4586
Area
4.9586997179388E+17
Volume
2.6267304873497E+26
Surface area
1.9834798871755E+18
Circumference
2496254362.4586
Perimeter
1589164884
Area
157840314283670841
Diagonal
561854632.94997
Surface area
947041885702025046
Volume
6.2708571184783E+25
Space diagonal
688128580.17308
Perimeter
1191873663
Area
6.8346860955489E+16
Altitude
344064290.08654
Surface area
6.8346860955489E+16
Volume
7.3902759872133E+24
Height
187284877.64999