| Base | Representation |
|---|---|
| bin | 1101001000111… |
| … | …0111010011000 |
| 3 | 10211200221112000 |
| 4 | 3102032322120 |
| 5 | 103102030240 |
| 6 | 5245121000 |
| 7 | 1236303255 |
| oct | 322167230 |
| 9 | 124627460 |
| 10 | 55111320 |
| 11 | 29121a50 |
| 12 | 16559160 |
| 13 | b557a64 |
| 14 | 746842c |
| 15 | 4c89430 |
| hex | 348ee98 |
55111320 has 128 divisors (see below), whose sum is σ = 200448000. Its totient is φ = 13357440.
The previous prime is 55111291. The next prime is 55111321. The reversal of 55111320 is 2311155.
55111320 is a `hidden beast` number, since 551 + 113 + 2 + 0 = 666.
55111320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 55111293 and 55111302.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (55111321) by changing a digit.
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 31 ways as a sum of consecutive naturals, for example, 9561 + ... + 14199.
It is an arithmetic number, because the mean of its divisors is an integer number (1566000).
Almost surely, 255111320 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 55111320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100224000).
55111320 is an abundant number, since it is smaller than the sum of its proper divisors (145336680).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
55111320 is a wasteful number, since it uses less digits than its factorization.
55111320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4670 (or 4660 counting only the distinct ones).
The product of its (nonzero) digits is 150, while the sum is 18.
The square root of 55111320 is about 7423.6998861754. The cubic root of 55111320 is about 380.5516456956.
Adding to 55111320 its reverse (2311155), we get a palindrome (57422475).
The spelling of 55111320 in words is "fifty-five million, one hundred eleven thousand, three hundred twenty".
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