Base | Representation |
---|---|
bin | 111011011001… |
… | …0110010010100 |
3 | 2011121010102211 |
4 | 1312302302110 |
5 | 30433003022 |
6 | 3031243204 |
7 | 525460060 |
oct | 166626224 |
9 | 64533384 |
10 | 31141012 |
11 | 1663a781 |
12 | a519504 |
13 | 65b4446 |
14 | 41c8aa0 |
15 | 2b01e77 |
hex | 1db2c94 |
31141012 has 24 divisors (see below), whose sum is σ = 64431360. Its totient is φ = 12885600.
The previous prime is 31141007. The next prime is 31141067. The reversal of 31141012 is 21014113.
It is a junction number, because it is equal to n+sod(n) for n = 31140983 and 31141001.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18364 + ... + 19987.
It is an arithmetic number, because the mean of its divisors is an integer number (2684640).
Almost surely, 231141012 is an apocalyptic number.
It is an amenable number.
31141012 is an abundant number, since it is smaller than the sum of its proper divisors (33290348).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31141012 is a wasteful number, since it uses less digits than its factorization.
31141012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 38391 (or 38389 counting only the distinct ones).
The product of its (nonzero) digits is 24, while the sum is 13.
The square root of 31141012 is about 5580.4132463465. The cubic root of 31141012 is about 314.6136592180.
Adding to 31141012 its reverse (21014113), we get a palindrome (52155125).
It can be divided in two parts, 3 and 1141012, that multiplied together give a triangular number (3423036 = T2616).
The spelling of 31141012 in words is "thirty-one million, one hundred forty-one thousand, twelve".
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