| Base | Representation |
|---|---|
| bin | 100110110101100… |
| … | …0000101000111000 |
| 3 | 10100211001101012000 |
| 4 | 1031223000220320 |
| 5 | 10132044323230 |
| 6 | 333150221000 |
| 7 | 44202224646 |
| oct | 11553005070 |
| 9 | 3324041160 |
| 10 | 1303120440 |
| 11 | 609639746 |
| 12 | 3044b4760 |
| 13 | 179c8b3ab |
| 14 | c50d4196 |
| 15 | 79609b60 |
| hex | 4dac0a38 |
1303120440 has 128 divisors (see below), whose sum is σ = 4351968000. Its totient is φ = 346840704.
The previous prime is 1303120421. The next prime is 1303120447. The reversal of 1303120440 is 440213031.
It is a super-2 number, since 2×13031204402 = 3396245762291587200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1303120447) 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, 892431 + ... + 893889.
It is an arithmetic number, because the mean of its divisors is an integer number (33999750).
Almost surely, 21303120440 is an apocalyptic number.
1303120440 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 1303120440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2175984000).
1303120440 is an abundant number, since it is smaller than the sum of its proper divisors (3048847560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1303120440 is a wasteful number, since it uses less digits than its factorization.
1303120440 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2306 (or 2296 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 1303120440 is about 36098.7595354743. The cubic root of 1303120440 is about 1092.2654227408.
Adding to 1303120440 its reverse (440213031), we get a palindrome (1743333471).
The spelling of 1303120440 in words is "one billion, three hundred three million, one hundred twenty thousand, four hundred forty".
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