| Base | Representation |
|---|---|
| bin | 10011001100010111110… |
| … | …010100001110100000000 |
| 3 | 11200002110011210120002000 |
| 4 | 103030113302201310000 |
| 5 | 133102204221102121 |
| 6 | 2445530311224000 |
| 7 | 164201624466330 |
| oct | 23142762416400 |
| 9 | 4602404716060 |
| 10 | 1318954081536 |
| 11 | 469402215193 |
| 12 | 193757078000 |
| 13 | 974b8ba84c0 |
| 14 | 47ba29ad0c0 |
| 15 | 24497e3e526 |
| hex | 13317ca1d00 |
1318954081536 has 2304 divisors, whose sum is σ = 5506579169280. Its totient is φ = 301305692160.
The previous prime is 1318954081517. The next prime is 1318954081589. The reversal of 1318954081536 is 6351804598131.
1318954081536 is a `hidden beast` number, since 1 + 3 + 1 + 89 + 5 + 408 + 153 + 6 = 666.
It is a tau number, because it is divible by the number of its divisors (2304).
It is a super-2 number, since 2×13189540815362 (a number of 25 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 7624011946 + ... + 7624012118.
It is an arithmetic number, because the mean of its divisors is an integer number (2390008320).
Almost surely, 21318954081536 is an apocalyptic number.
1318954081536 is a gapful number since it is divisible by the number (16) 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 1318954081536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2753289584640).
1318954081536 is an abundant number, since it is smaller than the sum of its proper divisors (4187625087744).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1318954081536 is a wasteful number, since it uses less digits than its factorization.
1318954081536 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 289 (or 269 counting only the distinct ones).
The product of its (nonzero) digits is 3110400, while the sum is 54.
The spelling of 1318954081536 in words is "one trillion, three hundred eighteen billion, nine hundred fifty-four million, eighty-one thousand, five hundred thirty-six".
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