31687130 is an even 8-digits composite number following 31687129
and preceding 31687131 . In scientific notation, it is written as 3.1687130 × 10^7.
The sum of its digits is 29. It has a total of 5 prime factors and 32 positive divisors.
There are 12160512 positive integers (up to 31687130) that are relatively prime to 31687130.
31687130 has 32 divisors, whose sum is 59400000
The reverse of 31687130 is 03178613
Previous prime number is 43
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
thirty-one million six hundred eighty-seven thousand one hundred thirty
Scientific notation
3.1687130 × 10^7
Engineering notation
3.1687130 × 10^6
Prime Factorization
2 × 59 × 5 × 43 × 1249
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
31687130
Product of the distinct prime numbers
The prime factorization of 31687130 is 2 × 59 × 5 × 43 × 1249.
Since it has a total of 5 prime factors.
10 , 8 , 85 , 71 , 632 , 372 , 3593 , 1178 , 77873 , 47211 , 465771 , 103790 , 249058 , 8739470 , 35494773 , 11119879 , 827500384 , 50796423 , 3996015500 , 2214129993
n×2
63374260
n×3
95061390
n×4
126748520
n×5
158435650
n÷2
15843565
n÷3
10562376.666667
n÷3
7921782.5
n÷5
6337426
n2
1004074207636900
n3
3.1816229947037E+22
n4
1.0081650144417E+30
n5
3.1945855874065E+37
2 √n
5629.1322599491
3 √n
316.44213199629
4 √n
75.02754334209
5 √n
31.635636817218
1 , 2 , 5 , 10 , 43 , 59 , 86 , 118 , 215 , 295 , 430 , 590 , 1249 , 2498 , 2537 , 5074 , 6245 , 12490 , 12685 , 25370 , 53707 , 73691 , 107414 , 147382 , 268535 , 368455 , 537070 , 736910 , 3168713 , 6337426 , 15843565 , 31687130
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31687129
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31687130 can be divided by 32 positive divisors.
The sum of these divisors (counting 31687130) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1111000111000000111011010
3
Ternary
2012121212120102
4
Quaternary
1320320013122
5
Quinary
31102442010
6
Senary
3051055402
8
Octal
170700732
10
Decimal
31687130
12
Duodecimal
a741562
16
Hexadecimal
1e381da
20
Vigesimal
9i0hga
36
Base36
iv5y2
md5
90042249b75de1bd9c731ee584a9a7a5
sha1
40f462d71c6d00f6503b8187a27973dd58131ec0
sha256
63c6a55fb0d694f42c55ed91bcaa0ca0f942bbf80aba7a7e381c8fbae3b21be3
sha512
0f48e679e311127f4a24288a092c60520f4eacf34d1ede3665a34b8620b5f87c95da0e2233c8fefc06855b9a545af8ca75ffc22a9f67c9d20be3be0adc7f4ffe
ripemd-160
9d61c5fdb9766d094ff9c744b9abf163aa2d0b61
Diameter
63374260
Circumference
199096109.64269
Area
3.1543921543711E+15
Volume
1.3327151235538E+23
Surface area
1.2617568617484E+16
Circumference
199096109.64269
Perimeter
126748520
Area
1004074207636900
Diagonal
44812368.998679
Surface area
6024445245821400
Volume
3.1816229947037E+22
Space diagonal
54883719.10604
Perimeter
95061390
Area
4.3477688554914E+14
Altitude
27441859.55302
Surface area
4.3477688554914E+14
Volume
3.7495786578901E+21
Height
14937456.332893