Base | Representation |
---|---|
bin | 1001000111001100011… |
… | …10100000111111010011 |
3 | 1002221011111021122122221 |
4 | 10203212032200333103 |
5 | 20112212123211011 |
6 | 355500344041511 |
7 | 31422625605652 |
oct | 4434616407723 |
9 | 1087144248587 |
10 | 313100210131 |
11 | 11086a9a7045 |
12 | 50820763297 |
13 | 236a9bb8937 |
14 | 11222d15199 |
15 | 8227807971 |
hex | 48e63a0fd3 |
313100210131 has 4 divisors (see below), whose sum is σ = 320736800664. Its totient is φ = 305463619600.
The previous prime is 313100210081. The next prime is 313100210141. The reversal of 313100210131 is 131012001313.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131012001313 = 4523 ⋅28965731.
It is a cyclic number.
It is not a de Polignac number, because 313100210131 - 229 = 312563339219 is a prime.
It is a super-2 number, since 2×3131002101312 (a number of 24 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (313100210141) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3818295205 + ... + 3818295286.
It is an arithmetic number, because the mean of its divisors is an integer number (80184200166).
Almost surely, 2313100210131 is an apocalyptic number.
313100210131 is a deficient number, since it is larger than the sum of its proper divisors (7636590533).
313100210131 is an equidigital number, since it uses as much as digits as its factorization.
313100210131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7636590532.
The product of its (nonzero) digits is 54, while the sum is 16.
Adding to 313100210131 its reverse (131012001313), we get a palindrome (444112211444).
The spelling of 313100210131 in words is "three hundred thirteen billion, one hundred million, two hundred ten thousand, one hundred thirty-one".
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