| Base | Representation |
|---|---|
| bin | 11001010000100100111000… |
| … | …10111010111010010000000 |
| 3 | 21021200001201100012011101200 |
| 4 | 30220102130113113102000 |
| 5 | 24240022421423122430 |
| 6 | 314045030225301200 |
| 7 | 14462001234452541 |
| oct | 1450223427272200 |
| 9 | 237601640164350 |
| 10 | 55545140442240 |
| 11 | 1677561a7a2459 |
| 12 | 629102b194800 |
| 13 | 24cbb65979857 |
| 14 | da05833604c8 |
| 15 | 664ccade5460 |
| hex | 32849c5d7480 |
55545140442240 has 192 divisors, whose sum is σ = 191966744993400. Its totient is φ = 14799493693440.
The previous prime is 55545140442193. The next prime is 55545140442241. The reversal of 55545140442240 is 4224404154555.
55545140442240 is a `hidden beast` number, since 5 + 5 + 5 + 45 + 140 + 4 + 422 + 40 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 52426751759424 + 3118388682816 = 7240632^2 + 1765896^2 .
It is a tau number, because it is divible by the number of its divisors (192).
It is a Harshad number since it is a multiple of its sum of digits (45).
It is not an unprimeable number, because it can be changed into a prime (55545140442241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2719896 + ... + 10885224.
Almost surely, 255545140442240 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 55545140442240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95983372496700).
55545140442240 is an abundant number, since it is smaller than the sum of its proper divisors (136421604551160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
55545140442240 is a wasteful number, since it uses less digits than its factorization.
55545140442240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8166535 (or 8166520 counting only the distinct ones).
The product of its (nonzero) digits is 2560000, while the sum is 45.
Adding to 55545140442240 its reverse (4224404154555), we get a palindrome (59769544596795).
The spelling of 55545140442240 in words is "fifty-five trillion, five hundred forty-five billion, one hundred forty million, four hundred forty-two thousand, two hundred forty".
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