| Base | Representation |
|---|---|
| bin | 10000011101110110000… |
| … | …000100001111101100000 |
| 3 | 11000011202002201100000000 |
| 4 | 100131312000201331200 |
| 5 | 122014411344440230 |
| 6 | 2223455121300000 |
| 7 | 144516006264531 |
| oct | 20356600417540 |
| 9 | 4004662640000 |
| 10 | 1131556249440 |
| 11 | 3a6988004291 |
| 12 | 163377a94600 |
| 13 | 829226c8416 |
| 14 | 3caa6498688 |
| 15 | 1e67b035b60 |
| hex | 10776021f60 |
1131556249440 has 864 divisors, whose sum is σ = 4282644169440. Its totient is φ = 281530515456.
The previous prime is 1131556249429. The next prime is 1131556249441. The reversal of 1131556249440 is 449426551311.
1131556249440 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 5 + 562 + 49 + 4 + 40 = 666.
It is a tau number, because it is divible by the number of its divisors (864).
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1131556249441) by changing a digit.
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 143 ways as a sum of consecutive naturals, for example, 2908884766 + ... + 2908885154.
It is an arithmetic number, because the mean of its divisors is an integer number (4956764085).
Almost surely, 21131556249440 is an apocalyptic number.
1131556249440 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 1131556249440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2141322084720).
1131556249440 is an abundant number, since it is smaller than the sum of its proper divisors (3151087920000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1131556249440 is an equidigital number, since it uses as much as digits as its factorization.
1131556249440 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 608 (or 579 counting only the distinct ones).
The product of its (nonzero) digits is 518400, while the sum is 45.
The spelling of 1131556249440 in words is "one trillion, one hundred thirty-one billion, five hundred fifty-six million, two hundred forty-nine thousand, four hundred forty".
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