Base | Representation |
---|---|
bin | 111011001011… |
… | …1000011010010 |
3 | 2011101100121100 |
4 | 1312113003102 |
5 | 30420334120 |
6 | 3025005230 |
7 | 524504631 |
oct | 166270322 |
9 | 64340540 |
10 | 31027410 |
11 | 16572397 |
12 | a483816 |
13 | 657481b |
14 | 4199518 |
15 | 2acd490 |
hex | 1d970d2 |
31027410 has 24 divisors (see below), whose sum is σ = 80671500. Its totient is φ = 8273952.
The previous prime is 31027393. The next prime is 31027417. The reversal of 31027410 is 1472013.
It can be written as a sum of positive squares in 2 ways, for example, as 30041361 + 986049 = 5481^2 + 993^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (31027417) by changing a digit.
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 11 ways as a sum of consecutive naturals, for example, 172285 + ... + 172464.
Almost surely, 231027410 is an apocalyptic number.
31027410 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
31027410 is an abundant number, since it is smaller than the sum of its proper divisors (49644090).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31027410 is a wasteful number, since it uses less digits than its factorization.
31027410 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 344762 (or 344759 counting only the distinct ones).
The product of its (nonzero) digits is 168, while the sum is 18.
The square root of 31027410 is about 5570.2253096262. The cubic root of 31027410 is about 314.2306242480.
Adding to 31027410 its reverse (1472013), we get a palindrome (32499423).
The spelling of 31027410 in words is "thirty-one million, twenty-seven thousand, four hundred ten".
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