Base | Representation |
---|---|
bin | 111011010101… |
… | …1101101110101 |
3 | 2011112122201021 |
4 | 1312223231311 |
5 | 30431041203 |
6 | 3030501141 |
7 | 525306460 |
oct | 166535565 |
9 | 64478637 |
10 | 31112053 |
11 | 1661aa45 |
12 | a5047b1 |
13 | 65a41cb |
14 | 41bc2d7 |
15 | 2ae85bd |
hex | 1dabb75 |
31112053 has 8 divisors (see below), whose sum is σ = 36087872. Its totient is φ = 26269056.
The previous prime is 31112051. The next prime is 31112083. The reversal of 31112053 is 35021113.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 31112053 - 21 = 31112051 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31112051) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32700 + ... + 33637.
It is an arithmetic number, because the mean of its divisors is an integer number (4510984).
Almost surely, 231112053 is an apocalyptic number.
It is an amenable number.
31112053 is a deficient number, since it is larger than the sum of its proper divisors (4975819).
31112053 is an equidigital number, since it uses as much as digits as its factorization.
31112053 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 66411.
The product of its (nonzero) digits is 90, while the sum is 16.
The square root of 31112053 is about 5577.8179425291. The cubic root of 31112053 is about 314.5161059487.
Adding to 31112053 its reverse (35021113), we get a palindrome (66133166).
The spelling of 31112053 in words is "thirty-one million, one hundred twelve thousand, fifty-three".
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