31386913 is an odd 8-digits composite number following 31386912
and preceding 31386914 . In scientific notation, it is written as 3.1386913 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 29540608 positive integers (up to 31386913) that are relatively prime to 31386913.
31386913 has 4 divisors, whose sum is 33233220
The reverse of 31386913 is 31968313
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
thirty-one million three hundred eighty-six thousand nine hundred thirteen
Scientific notation
3.1386913 × 10^7
Engineering notation
3.1386913 × 10^6
Prime Factorization
17 × 1846289
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
31386913
Product of the distinct prime numbers
The prime factorization of 31386913 is 17 × 1846289.
Since it has a total of 2 prime factors.
7 , 8 , 22 , 15 , 808 , 391 , 1428 , 2484 , 37784 , 17121 , 538332 , 206277 , 2340259 , 2737116 , 2569477 , 77240952 , 707190138 , 422319789 , 5599407423 , 8297142220
n×2
62773826
n×3
94160739
n×4
125547652
n×5
156934565
n÷2
15693456.5
n÷3
10462304.333333
n÷3
7846728.25
n÷5
6277382.6
n2
985138307669569
n3
3.0920450355792E+22
n4
9.7049748523806E+29
n5
3.0460920135886E+37
2 √n
5602.4024311004
3 √n
315.43959117452
4 √n
74.849197932245
5 √n
31.575462510059
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-31386912
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 31386913 can be divided by 4 positive divisors.
The sum of these divisors (counting 31386913) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110111101110110100100001
3
Ternary
2012001121202021
4
Quaternary
1313232310201
5
Quinary
31013340123
6
Senary
3040421441
8
Octal
167566441
10
Decimal
31386913
12
Duodecimal
a617881
16
Hexadecimal
1deed21
20
Vigesimal
9g375d
36
Base36
ioqap
md5
b22e655b49fdb4eeeed8578a64e68fe7
sha1
945d212a830b9e0ac69b9b2ffcf76c837d83983b
sha256
d2329dd48dcea38de98a432bfe0833806bca115031d78a9620bc2fadb7a59a05
sha512
b24f994aede9167ac32f66552d85d60bad458cac03cfd810297ac5fe6181d69a38257e2bc81bb36e083b0ca12602ea4cf5782e566d9e7f090e71ffb24862af1a
ripemd-160
4b56bdd83f083d5b8ec1655c53dd6c24a46deb7e
Diameter
62773826
Circumference
197209790.59932
Area
3.0949032701446E+15
Volume
1.2951927957793E+23
Surface area
1.2379613080578E+16
Circumference
197209790.59932
Perimeter
125547652
Area
985138307669569
Diagonal
44387798.045624
Surface area
5910829846017414
Volume
3.0920450355792E+22
Space diagonal
54363728.008744
Perimeter
94160739
Area
4.2657740034153E+14
Altitude
27181864.004372
Surface area
4.2657740034153E+14
Volume
3.6440100206538E+21
Height
14795932.681875