Base | Representation |
---|---|
bin | 11100111101110001… |
… | …010010100010001111 |
3 | 2222021111012200122221 |
4 | 130331301102202033 |
5 | 1002143340232343 |
6 | 22142044320211 |
7 | 2150500002262 |
oct | 347561224217 |
9 | 88244180587 |
10 | 31101102223 |
11 | 1220a841474 |
12 | 603b843067 |
13 | 2c18540689 |
14 | 1710792cd9 |
15 | c2062b5ed |
hex | 73dc5288f |
31101102223 has 8 divisors (see below), whose sum is σ = 32740830320. Its totient is φ = 29461656960.
The previous prime is 31101102181. The next prime is 31101102269. The reversal of 31101102223 is 32220110113.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-31101102223 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 31101102197 and 31101102206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31101103223) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177361 + ... + 306037.
It is an arithmetic number, because the mean of its divisors is an integer number (4092603790).
Almost surely, 231101102223 is an apocalyptic number.
31101102223 is a deficient number, since it is larger than the sum of its proper divisors (1639728097).
31101102223 is a wasteful number, since it uses less digits than its factorization.
31101102223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 141417.
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 31101102223 its reverse (32220110113), we get a palindrome (63321212336).
The spelling of 31101102223 in words is "thirty-one billion, one hundred one million, one hundred two thousand, two hundred twenty-three".
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