Base | Representation |
---|---|
bin | 111011110001… |
… | …1101001000101 |
3 | 2011222021221102 |
4 | 1313203221011 |
5 | 31010404000 |
6 | 3035425445 |
7 | 530252354 |
oct | 167435105 |
9 | 64867842 |
10 | 31341125 |
11 | 16767062 |
12 | a5b5285 |
13 | 665455a |
14 | 423b99b |
15 | 2b413d5 |
hex | 1de3a45 |
31341125 has 16 divisors (see below), whose sum is σ = 39387504. Its totient is φ = 24897600.
The previous prime is 31341113. The next prime is 31341137. The reversal of 31341125 is 52114313.
It is an interprime number because it is at equal distance from previous prime (31341113) and next prime (31341137).
It can be written as a sum of positive squares in 8 ways, for example, as 18395521 + 12945604 = 4289^2 + 3598^2 .
It is not a de Polignac number, because 31341125 - 216 = 31275589 is a prime.
It is a super-2 number, since 2×313411252 = 1964532232531250, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 31341097 and 31341106.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18827 + ... + 20423.
It is an arithmetic number, because the mean of its divisors is an integer number (2461719).
Almost surely, 231341125 is an apocalyptic number.
It is an amenable number.
31341125 is a deficient number, since it is larger than the sum of its proper divisors (8046379).
31341125 is a wasteful number, since it uses less digits than its factorization.
31341125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1769 (or 1759 counting only the distinct ones).
The product of its digits is 360, while the sum is 20.
The square root of 31341125 is about 5598.3144784837. The cubic root of 31341125 is about 315.2861261817.
Adding to 31341125 its reverse (52114313), we get a palindrome (83455438).
The spelling of 31341125 in words is "thirty-one million, three hundred forty-one thousand, one hundred twenty-five".
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