Search a number
-
+
1112111031 = 3536994409
BaseRepresentation
bin100001001001001…
…0111011110110111
32212111122002112110
41002102113132313
54234200023111
6302204222103
736362534133
oct10222273667
92774562473
101112111031
11520837529
1227053a933
13149531385
14a79b23c3
15679795a6
hex424977b7

1112111031 has 8 divisors (see below), whose sum is σ = 1510792560. Its totient is φ = 727418432.

The previous prime is 1112111029. The next prime is 1112111041. The reversal of 1112111031 is 1301112111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1112111031 - 21 = 1112111029 is a prime.

It is a super-3 number, since 3×11121110313 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1112110998 and 1112111016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112111041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3497046 + ... + 3497363.

It is an arithmetic number, because the mean of its divisors is an integer number (188849070).

Almost surely, 21112111031 is an apocalyptic number.

1112111031 is a deficient number, since it is larger than the sum of its proper divisors (398681529).

1112111031 is an equidigital number, since it uses as much as digits as its factorization.

1112111031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6994465.

The product of its (nonzero) digits is 6, while the sum is 12.

The square root of 1112111031 is about 33348.3287587249. The cubic root of 1112111031 is about 1036.0547738540.

Adding to 1112111031 its reverse (1301112111), we get a palindrome (2413223142).

The spelling of 1112111031 in words is "one billion, one hundred twelve million, one hundred eleven thousand, thirty-one".

Divisors: 1 3 53 159 6994409 20983227 370703677 1112111031