| Base | Representation |
|---|---|
| bin | 1101011100100011000… |
| … | …0011011010001111100 |
| 3 | 211002020212220012122120 |
| 4 | 3113020300123101330 |
| 5 | 12241042324421130 |
| 6 | 254042013442540 |
| 7 | 22455300353424 |
| oct | 3271060332174 |
| 9 | 732225805576 |
| 10 | 231001404540 |
| 11 | 89a702a8295 |
| 12 | 38929aa0450 |
| 13 | 18a24cc382a |
| 14 | b275521484 |
| 15 | 601ee5a910 |
| hex | 35c8c1b47c |
231001404540 has 192 divisors, whose sum is σ = 685464944640. Its totient is φ = 57963859200.
The previous prime is 231001404523. The next prime is 231001404587. The reversal of 231001404540 is 45404100132.
231001404540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×2310014045402 (a number of 24 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 231001404540.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 118400565 + ... + 118402515.
It is an arithmetic number, because the mean of its divisors is an integer number (3570129920).
Almost surely, 2231001404540 is an apocalyptic number.
231001404540 is a gapful number since it is divisible by the number (20) 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 231001404540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342732472320).
231001404540 is an abundant number, since it is smaller than the sum of its proper divisors (454463540100).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231001404540 is a wasteful number, since it uses less digits than its factorization.
231001404540 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2632 (or 2630 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 24.
Adding to 231001404540 its reverse (45404100132), we get a palindrome (276405504672).
The spelling of 231001404540 in words is "two hundred thirty-one billion, one million, four hundred four thousand, five hundred forty".
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