| Base | Representation |
|---|---|
| bin | 11101011011100… |
| … | …110000000101000 |
| 3 | 1021102010020222222 |
| 4 | 131123212000220 |
| 5 | 2002401212330 |
| 6 | 120555133212 |
| 7 | 15143666651 |
| oct | 3533460050 |
| 9 | 1242106888 |
| 10 | 493772840 |
| 11 | 2337a3930 |
| 12 | 119444208 |
| 13 | 7b3b48a2 |
| 14 | 49814528 |
| 15 | 2d5380e5 |
| hex | 1d6e6028 |
493772840 has 128 divisors (see below), whose sum is σ = 1258467840. Its totient is φ = 172800000.
The previous prime is 493772819. The next prime is 493772843. The reversal of 493772840 is 48277394.
It is a Cunningham number, because it is equal to 222212-1.
It is a Harshad number since it is a multiple of its sum of digits (44).
It is a junction number, because it is equal to n+sod(n) for n = 493772791 and 493772800.
It is not an unprimeable number, because it can be changed into a prime (493772843) 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, 1821905 + ... + 1822175.
It is an arithmetic number, because the mean of its divisors is an integer number (9831780).
Almost surely, 2493772840 is an apocalyptic number.
493772840 is a gapful number since it is divisible by the number (40) 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 493772840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (629233920).
493772840 is an abundant number, since it is smaller than the sum of its proper divisors (764695000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
493772840 is a wasteful number, since it uses less digits than its factorization.
493772840 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 435 (or 431 counting only the distinct ones).
The product of its (nonzero) digits is 338688, while the sum is 44.
The square root of 493772840 is about 22220.9999774988. Note that the first 4 decimals coincide. The cubic root of 493772840 is about 790.3917514383.
It can be divided in two parts, 4937 and 72840, that added together give a palindrome (77777).
The spelling of 493772840 in words is "four hundred ninety-three million, seven hundred seventy-two thousand, eight hundred forty".
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