31897072 is an even 8-digits composite number following 31897071
and preceding 31897073 . In scientific notation, it is written as 3.1897072 × 10^7.
The sum of its digits is 37. It has a total of 6 prime factors and 20 positive divisors.
There are 15921728 positive integers (up to 31897072) that are relatively prime to 31897072.
31897072 has 20 divisors, whose sum is 61904520
The reverse of 31897072 is 27079813
Previous prime number is 2579
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
thirty-one million eight hundred ninety-seven thousand seventy-two
Scientific notation
3.1897072 × 10^7
Engineering notation
3.1897072 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2579 × 773
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
3987134
Product of the distinct prime numbers
The prime factorization of 31897072 is 2 × 2 × 2 × 2 × 2579 × 773.
Since it has a total of 6 prime factors.
3 , 9 , 87 , 29 , 329 , 538 , 1228 , 9880 , 83551 , 1372 , 695489 , 31405 , 7217855 , 1057462 , 43766907 , 6338525 , 290730834 , 381472998 , 7163364033 , 6815376476
n×2
63794144
n×3
95691216
n×4
127588288
n×5
159485360
n÷2
15948536
n÷3
10632357.333333
n÷3
7974268
n÷5
6379414.4
n2
1017423202173184
n3
3.2452821134189E+22
n4
1.0351499723203E+30
n5
3.30182531979E+37
2 √n
5647.7492862201
3 √n
317.13945308454
4 √n
75.151508875206
5 √n
31.677446327298
1 , 2 , 4 , 8 , 16 , 773 , 1546 , 2579 , 3092 , 5158 , 6184 , 10316 , 12368 , 20632 , 41264 , 1993567 , 3987134 , 7974268 , 15948536 , 31897072
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31897071
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31897072 can be divided by 20 positive divisors.
The sum of these divisors (counting 31897072) is 1, the average is 0.05.
Base
System
Value
2
Binary
1111001101011010111110000
3
Ternary
2020000112120001
4
Quaternary
1321223113300
5
Quinary
31131201242
6
Senary
3055355344
8
Octal
171532760
10
Decimal
31897072
12
Duodecimal
a822b54
16
Hexadecimal
1e6b5f0
20
Vigesimal
9j72dc
36
Base36
iznxs
md5
07e9f9fa4815831e69bf6ba8a1902764
sha1
505ccabcabceb152bcc07dae2ba1d337be4c380e
sha256
8d7e3f6caf0064e9a98fc2916b3158892a7bb019c5e07b828ecc6f1a3b40076e
sha512
972628c136b03d8b8f4a776cd9092783fe343d5b2c3e8bfbe575e9a1291b00129b3f41afc24d11c0c088027f8f5df12fdbff0427971db726b20295eee31f8ec8
ripemd-160
10a22b0ffd4a59ce8c1abc07d59f078e07f935cb
Diameter
63794144
Circumference
200415214.13245
Area
3.1963292575391E+15
Volume
1.3593805928457E+23
Surface area
1.2785317030156E+16
Circumference
200415214.13245
Perimeter
127588288
Area
1017423202173184
Diagonal
45109271.822391
Surface area
6104539213039104
Volume
3.2452821134189E+22
Space diagonal
55247349.316683
Perimeter
95691216
Area
4.4055716974084E+14
Altitude
27623674.658341
Surface area
4.4055716974084E+14
Volume
3.8246016487698E+21
Height
15036423.940797