Base | Representation |
---|---|
bin | 111011001110… |
… | …1101001110010 |
3 | 2011102201200211 |
4 | 1312131221302 |
5 | 30422220300 |
6 | 3025334334 |
7 | 524646520 |
oct | 166355162 |
9 | 64381624 |
10 | 31054450 |
11 | 16590739 |
12 | a4973aa |
13 | 6583c1b |
14 | 41a5310 |
15 | 2ad64ba |
hex | 1d9da72 |
31054450 has 48 divisors (see below), whose sum is σ = 66870720. Its totient is φ = 10509120.
The previous prime is 31054423. The next prime is 31054459. The reversal of 31054450 is 5445013.
It is not an unprimeable number, because it can be changed into a prime (31054459) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28516 + ... + 29584.
It is an arithmetic number, because the mean of its divisors is an integer number (1393140).
Almost surely, 231054450 is an apocalyptic number.
31054450 is an abundant number, since it is smaller than the sum of its proper divisors (35816270).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31054450 is a wasteful number, since it uses less digits than its factorization.
31054450 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1171 (or 1166 counting only the distinct ones).
The product of its (nonzero) digits is 1200, while the sum is 22.
The square root of 31054450 is about 5572.6519719071. The cubic root of 31054450 is about 314.3218804307.
Adding to 31054450 its reverse (5445013), we get a palindrome (36499463).
The spelling of 31054450 in words is "thirty-one million, fifty-four thousand, four hundred fifty".
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