Base | Representation |
---|---|
bin | 111011011010… |
… | …0111110111110 |
3 | 2011121120210020 |
4 | 1312310332332 |
5 | 30433300024 |
6 | 3031353010 |
7 | 525525240 |
oct | 166647676 |
9 | 64546706 |
10 | 31150014 |
11 | 16646515 |
12 | a522766 |
13 | 65b857c |
14 | 41cc090 |
15 | 2b04979 |
hex | 1db4fbe |
31150014 has 16 divisors (see below), whose sum is σ = 71200128. Its totient is φ = 8899992.
The previous prime is 31149997. The next prime is 31150051. The reversal of 31150014 is 41005113.
It is a junction number, because it is equal to n+sod(n) for n = 31149975 and 31150002.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370792 + ... + 370875.
It is an arithmetic number, because the mean of its divisors is an integer number (4450008).
Almost surely, 231150014 is an apocalyptic number.
31150014 is an abundant number, since it is smaller than the sum of its proper divisors (40050114).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31150014 is a wasteful number, since it uses less digits than its factorization.
31150014 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 741679.
The product of its (nonzero) digits is 60, while the sum is 15.
The square root of 31150014 is about 5581.2197591566. The cubic root of 31150014 is about 314.6439716487.
Adding to 31150014 its reverse (41005113), we get a palindrome (72155127).
The spelling of 31150014 in words is "thirty-one million, one hundred fifty thousand, fourteen".
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