31397948 is an even 8-digits composite number following 31397947
and preceding 31397949 . In scientific notation, it is written as 3.1397948 × 10^7.
The sum of its digits is 44. It has a total of 4 prime factors and 12 positive divisors.
There are 15653040 positive integers (up to 31397948) that are relatively prime to 31397948.
31397948 has 12 divisors, whose sum is 55107192
The reverse of 31397948 is 84979313
Previous prime number is 347
Is Prime? no Number parity even Number length 8 Sum of Digits 44 Digital Root 8
Name
thirty-one million three hundred ninety-seven thousand nine hundred forty-eight
Scientific notation
3.1397948 × 10^7
Engineering notation
3.1397948 × 10^6
Prime Factorization
2 × 2 × 347 × 22621
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
15698974 Product of the distinct prime numbers
The prime factorization of 31397948 is 2 × 2 × 347 × 22621.
Since it has a total of 4 prime factors.
1 , 10 , 79 , 73 , 976 , 770 , 389 , 1634 , 68331 , 62679 , 992564 , 246517 , 6282497 , 8023154 , 25322056 , 11763019 , 851088368 , 52614464 , 6365860478 , 7428188888
n×2
62795896
n×3
94193844
n×4
125591792
n×5
156989740
n÷2
15698974
n÷3
10465982.666667
n÷3
7849487
n÷5
6279589.6
n2
985831138610704
n3
3.095307482688E+22
n4
9.7186303385448E+29
n5
3.0514505000085E+37
2 √n5603.3871899058
3 √n315.47655422377
4 √n74.85577592882
5 √n31.57768245592
1 , 2 , 4 , 347 , 694 , 1388 , 22621 , 45242 , 90484 , 7849487 , 15698974 , 31397948
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
-31397947 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 31397948 can be divided by 12 positive divisors.
The sum of these divisors (counting 31397948) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1110111110001100000111100
3
Ternary
2012002011212222
4
Quaternary
1313301200330
5
Quinary
31014213243
6
Senary
3040544512
8
Octal
167614074
10
Decimal
31397948
12
Duodecimal
a622138
16
Hexadecimal
1df183c
20
Vigesimal
9g4eh8
36
Base36
ioyt8
md5
dc2cb32ab5257bd1982c92cb48a833ac
sha1
3ffb99af1bd13a46d8889bda9e26e12a5c3c648e
sha256
639b77f5a06bd5e8e3b6b9b7fb925048f72b595ac51a5f041331c8ad74f0b024
sha512
e91b4f0341d7bf05f512f38732742c36dfbcf2d52f0c5ea9d3b95e3160264060d608ea8b8e1cf7f34681455b1f31750275e87c23f33b98459827d22e152ed31c
ripemd-160
430446d1ca72c294a632668b039efefedb3e4b45
Diameter
62795896
Circumference
197279125.54919
Area
3.0970798627394E+15
Volume
1.2965593664285E+23
Surface area
1.2388319450958E+16
Circumference
197279125.54919
Perimeter
125591792
Area
985831138610704
Diagonal
44403403.892285
Surface area
5914986831664224
Volume
3.095307482688E+22
Space diagonal
54382841.189406
Perimeter
94193844
Area
4.268774049393E+14
Altitude
27191420.594703
Surface area
4.268774049393E+14
Volume
3.6478548514435E+21
Height
14801134.630762