Base | Representation |
---|---|
bin | 111011010101… |
… | …1001110110000 |
3 | 2011112112222121 |
4 | 1312223032300 |
5 | 30431010224 |
6 | 3030444024 |
7 | 525300616 |
oct | 166531660 |
9 | 64475877 |
10 | 31110064 |
11 | 166194a7 |
12 | a503614 |
13 | 65a332b |
14 | 41bb6b6 |
15 | 2ae7be4 |
hex | 1dab3b0 |
31110064 has 10 divisors (see below), whose sum is σ = 60275780. Its totient is φ = 15555024.
The previous prime is 31110031. The next prime is 31110067. The reversal of 31110064 is 46001113.
It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 1944379 = 31110064 / (3 + 1 + 1 + 1 + 0 + 0 + 6 + 4).
It is not an unprimeable number, because it can be changed into a prime (31110067) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972174 + ... + 972205.
It is an arithmetic number, because the mean of its divisors is an integer number (6027578).
Almost surely, 231110064 is an apocalyptic number.
It is an amenable number.
31110064 is a deficient number, since it is larger than the sum of its proper divisors (29165716).
31110064 is a wasteful number, since it uses less digits than its factorization.
31110064 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1944387 (or 1944381 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 16.
The square root of 31110064 is about 5577.6396441506. The cubic root of 31110064 is about 314.5094034460.
Adding to 31110064 its reverse (46001113), we get a palindrome (77111177).
The spelling of 31110064 in words is "thirty-one million, one hundred ten thousand, sixty-four".
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