Base | Representation |
---|---|
bin | 111011111110… |
… | …0110010001110 |
3 | 2012011112012200 |
4 | 1313330302032 |
5 | 31022202420 |
6 | 3041542330 |
7 | 531161535 |
oct | 167746216 |
9 | 65145180 |
10 | 31444110 |
11 | 16827475 |
12 | a6449a6 |
13 | 668c3a9 |
14 | 426731c |
15 | 2b61b90 |
hex | 1dfcc8e |
31444110 has 24 divisors (see below), whose sum is σ = 81754920. Its totient is φ = 8385072.
The previous prime is 31444087. The next prime is 31444121. The reversal of 31444110 is 1144413.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174600 + ... + 174779.
It is an arithmetic number, because the mean of its divisors is an integer number (3406455).
Almost surely, 231444110 is an apocalyptic number.
31444110 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
31444110 is an abundant number, since it is smaller than the sum of its proper divisors (50310810).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31444110 is a wasteful number, since it uses less digits than its factorization.
31444110 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 349392 (or 349389 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 31444110 is about 5607.5047926863. The cubic root of 31444110 is about 315.6310855279.
Adding to 31444110 its reverse (1144413), we get a palindrome (32588523).
The spelling of 31444110 in words is "thirty-one million, four hundred forty-four thousand, one hundred ten".
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