| Base | Representation |
|---|---|
| bin | 100100101110111… |
| … | …0010010101110100 |
| 3 | 10011220020210002000 |
| 4 | 1021131302111310 |
| 5 | 10011012421030 |
| 6 | 322145415300 |
| 7 | 42354314031 |
| oct | 11135622564 |
| 9 | 3156223060 |
| 10 | 1232545140 |
| 11 | 582815452 |
| 12 | 2a493a530 |
| 13 | 16847aa68 |
| 14 | b99a2388 |
| 15 | 73318860 |
| hex | 49772574 |
1232545140 has 96 divisors (see below), whose sum is σ = 3887237760. Its totient is φ = 324165888.
The previous prime is 1232545121. The next prime is 1232545141. The reversal of 1232545140 is 415452321.
1232545140 is a `hidden beast` number, since 123 + 25 + 4 + 514 + 0 = 666.
1232545140 is digitally balanced in base 6, 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 (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1232545141) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23787 + ... + 55053.
It is an arithmetic number, because the mean of its divisors is an integer number (40492060).
Almost surely, 21232545140 is an apocalyptic number.
1232545140 is a gapful number since it is divisible by the number (10) 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 1232545140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1943618880).
1232545140 is an abundant number, since it is smaller than the sum of its proper divisors (2654692620).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1232545140 is a wasteful number, since it uses less digits than its factorization.
1232545140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31358 (or 31350 counting only the distinct ones).
The product of its (nonzero) digits is 4800, while the sum is 27.
The square root of 1232545140 is about 35107.6222493065. The cubic root of 1232545140 is about 1072.1797762745.
Adding to 1232545140 its reverse (415452321), we get a palindrome (1647997461).
The spelling of 1232545140 in words is "one billion, two hundred thirty-two million, five hundred forty-five thousand, one hundred forty".
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