Base | Representation |
---|---|
bin | 111100111011… |
… | …0000110111111 |
3 | 2020002202220001 |
4 | 1321312012333 |
5 | 31134103210 |
6 | 3100335131 |
7 | 535331416 |
oct | 171660677 |
9 | 66082801 |
10 | 31941055 |
11 | 17036873 |
12 | a8444a7 |
13 | 6804643 |
14 | 435647d |
15 | 2c0e03a |
hex | 1e761bf |
31941055 has 4 divisors (see below), whose sum is σ = 38329272. Its totient is φ = 25552840.
The previous prime is 31941047. The next prime is 31941073. The reversal of 31941055 is 55014913.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55014913 = 337 ⋅163249.
It is not a de Polignac number, because 31941055 - 23 = 31941047 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 3194101 + ... + 3194110.
It is an arithmetic number, because the mean of its divisors is an integer number (9582318).
Almost surely, 231941055 is an apocalyptic number.
31941055 is a deficient number, since it is larger than the sum of its proper divisors (6388217).
31941055 is an equidigital number, since it uses as much as digits as its factorization.
31941055 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6388216.
The product of its (nonzero) digits is 2700, while the sum is 28.
The square root of 31941055 is about 5651.6417968587. The cubic root of 31941055 is about 317.2851544219.
Adding to 31941055 its reverse (55014913), we get a palindrome (86955968).
The spelling of 31941055 in words is "thirty-one million, nine hundred forty-one thousand, fifty-five".
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