Base | Representation |
---|---|
bin | 1001000111010000010… |
… | …01010111000111110111 |
3 | 1002221020201212202021202 |
4 | 10203220021113013313 |
5 | 20112243344212211 |
6 | 355503454203115 |
7 | 31423466412065 |
oct | 4435011270767 |
9 | 1087221782252 |
10 | 313132413431 |
11 | 1108870a1942 |
12 | 5082b4b349b |
13 | 236b3782746 |
14 | 112272d9035 |
15 | 822a56953b |
hex | 48e82571f7 |
313132413431 has 4 divisors (see below), whose sum is σ = 313134007200. Its totient is φ = 313130819664.
The previous prime is 313132413421. The next prime is 313132413439. The reversal of 313132413431 is 134314231313.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134314231313 = 137 ⋅980395849.
It is a cyclic number.
It is not a de Polignac number, because 313132413431 - 26 = 313132413367 is a prime.
It is a super-2 number, since 2×3131324134312 (a number of 24 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 313132413394 and 313132413403.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (313132413439) 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, 452591 + ... + 911648.
It is an arithmetic number, because the mean of its divisors is an integer number (78283501800).
Almost surely, 2313132413431 is an apocalyptic number.
313132413431 is a deficient number, since it is larger than the sum of its proper divisors (1593769).
313132413431 is a wasteful number, since it uses less digits than its factorization.
313132413431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1593768.
The product of its digits is 7776, while the sum is 29.
Adding to 313132413431 its reverse (134314231313), we get a palindrome (447446644744).
The spelling of 313132413431 in words is "three hundred thirteen billion, one hundred thirty-two million, four hundred thirteen thousand, four hundred thirty-one".
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