| Base | Representation |
|---|---|
| bin | 100001000111101… |
| … | …1001001001010100 |
| 3 | 2212110011111002200 |
| 4 | 1002033121021110 |
| 5 | 4234000101122 |
| 6 | 302135404500 |
| 7 | 36353106162 |
| oct | 10217311124 |
| 9 | 2773144080 |
| 10 | 1111331412 |
| 11 | 520354814 |
| 12 | 270223730 |
| 13 | 14931a569 |
| 14 | a784c232 |
| 15 | 678735ac |
| hex | 423d9254 |
1111331412 has 72 divisors (see below), whose sum is σ = 3018951936. Its totient is φ = 343436544.
The previous prime is 1111331387. The next prime is 1111331437. The reversal of 1111331412 is 2141331111.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (1111331387) and next prime (1111331437).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a nude number because it is divisible by every one of its digits.
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 23 ways as a sum of consecutive naturals, for example, 27453 + ... + 54555.
It is an arithmetic number, because the mean of its divisors is an integer number (41929888).
Almost surely, 21111331412 is an apocalyptic number.
1111331412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1111331412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1509475968).
1111331412 is an abundant number, since it is smaller than the sum of its proper divisors (1907620524).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1111331412 is a wasteful number, since it uses less digits than its factorization.
1111331412 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27197 (or 27192 counting only the distinct ones).
The product of its digits is 72, while the sum is 18.
The square root of 1111331412 is about 33336.6376828858. The cubic root of 1111331412 is about 1035.8126167360.
Adding to 1111331412 its reverse (2141331111), we get a palindrome (3252662523).
The spelling of 1111331412 in words is "one billion, one hundred eleven million, three hundred thirty-one thousand, four hundred twelve".
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