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31112444421113 = 1123728316885087
BaseRepresentation
bin1110001001011111011100…
…01100101010001111111001
311002011022122202010121201112
413010233232030222033321
513034221241232433423
6150100505403530105
76360541243062656
oct704575614521771
9132138582117645
1031112444421113
119a057938598a0
1235a5972829935
131448b774745c3
14797bc94bac2d
1538e48d035a78
hex1c4bee32a3f9

31112444421113 has 16 divisors (see below), whose sum is σ = 35421402525696. Its totient is φ = 27050583175440.

The previous prime is 31112444421077. The next prime is 31112444421133.

31112444421113 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31112444421113 - 26 = 31112444421049 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31112444421113.

It is not an unprimeable number, because it can be changed into a prime (31112444421133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6599945 + ... + 10285142.

It is an arithmetic number, because the mean of its divisors is an integer number (2213837657856).

Almost surely, 231112444421113 is an apocalyptic number.

It is an amenable number.

31112444421113 is a deficient number, since it is larger than the sum of its proper divisors (4308958104583).

31112444421113 is a wasteful number, since it uses less digits than its factorization.

31112444421113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16892404.

The product of its digits is 9216, while the sum is 32.

It can be divided in two parts, 3111244 and 4421113, that added together give a palindrome (7532357).

The spelling of 31112444421113 in words is "thirty-one trillion, one hundred twelve billion, four hundred forty-four million, four hundred twenty-one thousand, one hundred thirteen".

Divisors: 1 11 23 253 7283 80113 167509 1842599 16885087 185735957 388357001 4271927011 122974088621 1352714974831 2828404038283 31112444421113