Base | Representation |
---|---|
bin | 11100111101110101… |
… | …100011111011000111 |
3 | 2222021120022120202000 |
4 | 130331311203323013 |
5 | 1002144132101043 |
6 | 22142124320343 |
7 | 2150512345065 |
oct | 347565437307 |
9 | 88246276660 |
10 | 31102222023 |
11 | 12210436824 |
12 | 60400a30b3 |
13 | 2c18843292 |
14 | 17109a5035 |
15 | c2079d2d3 |
hex | 73dd63ec7 |
31102222023 has 16 divisors (see below), whose sum is σ = 46765090560. Its totient is φ = 20425338648.
The previous prime is 31102222001. The next prime is 31102222031. The reversal of 31102222023 is 32022220113.
It is not a de Polignac number, because 31102222023 - 26 = 31102221959 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 31102221987 and 31102222005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31102222043) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8594715 + ... + 8598332.
It is an arithmetic number, because the mean of its divisors is an integer number (2922818160).
Almost surely, 231102222023 is an apocalyptic number.
31102222023 is a deficient number, since it is larger than the sum of its proper divisors (15662868537).
31102222023 is a wasteful number, since it uses less digits than its factorization.
31102222023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17193123 (or 17193117 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 31102222023 its reverse (32022220113), we get a palindrome (63124442136).
The spelling of 31102222023 in words is "thirty-one billion, one hundred two million, two hundred twenty-two thousand, twenty-three".
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