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31104022 = 2611092339
BaseRepresentation
bin111011010100…
…1110000010110
32011112020200211
41312221300112
530430312042
63030400034
7525244165
oct166516026
964466624
1031104022
1116614a04
12a50001a
1365a0661
1441b93dc
152ae6017
hex1da9c16

31104022 has 16 divisors (see below), whose sum is σ = 47876400. Its totient is φ = 15150240.

The previous prime is 31103993. The next prime is 31104049. The reversal of 31104022 is 22040113.

It is a junction number, because it is equal to n+sod(n) for n = 31103993 and 31104011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12129 + ... + 14467.

It is an arithmetic number, because the mean of its divisors is an integer number (2992275).

Almost surely, 231104022 is an apocalyptic number.

31104022 is a deficient number, since it is larger than the sum of its proper divisors (16772378).

31104022 is a wasteful number, since it uses less digits than its factorization.

31104022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 31104022 is about 5577.0979908910. The cubic root of 31104022 is about 314.4890414515.

Adding to 31104022 its reverse (22040113), we get a palindrome (53144135).

The spelling of 31104022 in words is "thirty-one million, one hundred four thousand, twenty-two".

Divisors: 1 2 61 109 122 218 2339 4678 6649 13298 142679 254951 285358 509902 15552011 31104022