| Base | Representation |
|---|---|
| bin | 101101010011101… |
| … | …0001000101100000 |
| 3 | 10220221121100101210 |
| 4 | 1122213101011200 |
| 5 | 11103140234130 |
| 6 | 410504030120 |
| 7 | 52446565311 |
| oct | 13247210540 |
| 9 | 3827540353 |
| 10 | 1520243040 |
| 11 | 710157108 |
| 12 | 365162340 |
| 13 | 1b2c5c1c4 |
| 14 | 105c92608 |
| 15 | 8d6e75b0 |
| hex | 5a9d1160 |
1520243040 has 96 divisors (see below), whose sum is σ = 4794806016. Its totient is φ = 404887040.
The previous prime is 1520242993. The next prime is 1520243077. The reversal of 1520243040 is 403420251.
It is a tau number, because it is divible by the number of its divisors (96).
It is a super-2 number, since 2×15202430402 = 4622277801336883200, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1520242998 and 1520243016.
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 15 ways as a sum of consecutive naturals, for example, 522229 + ... + 525131.
It is an arithmetic number, because the mean of its divisors is an integer number (49945896).
Almost surely, 21520243040 is an apocalyptic number.
1520243040 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 1520243040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2397403008).
1520243040 is an abundant number, since it is smaller than the sum of its proper divisors (3274562976).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1520243040 is a wasteful number, since it uses less digits than its factorization.
1520243040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4012 (or 4004 counting only the distinct ones).
The product of its (nonzero) digits is 960, while the sum is 21.
The square root of 1520243040 is about 38990.2941768846. The cubic root of 1520243040 is about 1149.8406937488.
Adding to 1520243040 its reverse (403420251), we get a palindrome (1923663291).
The spelling of 1520243040 in words is "one billion, five hundred twenty million, two hundred forty-three thousand, forty".
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