| Base | Representation |
|---|---|
| bin | 101111100111111010… |
| … | …011100111000011000 |
| 3 | 11212222201110112112000 |
| 4 | 233213322130320120 |
| 5 | 1314211141443200 |
| 6 | 35254043121000 |
| 7 | 3460120401540 |
| oct | 574772347030 |
| 9 | 155881415460 |
| 10 | 51135499800 |
| 11 | 1a760724940 |
| 12 | 9ab1213160 |
| 13 | 4a8c09cab8 |
| 14 | 2691470320 |
| 15 | 14e43de300 |
| hex | be7e9ce18 |
51135499800 has 768 divisors, whose sum is σ = 229185331200. Its totient is φ = 10161676800.
The previous prime is 51135499799. The next prime is 51135499801. The reversal of 51135499800 is 899453115.
51135499800 is a `hidden beast` number, since 5 + 1 + 13 + 549 + 98 + 0 + 0 = 666.
It is an interprime number because it is at equal distance from previous prime (51135499799) and next prime (51135499801).
It is a super-3 number, since 3×511354998003 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
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 (51135499801) by changing a digit.
It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 9560727 + ... + 9566073.
It is an arithmetic number, because the mean of its divisors is an integer number (298418400).
Almost surely, 251135499800 is an apocalyptic number.
51135499800 is a gapful number since it is divisible by the number (50) 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 51135499800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114592665600).
51135499800 is an abundant number, since it is smaller than the sum of its proper divisors (178049831400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
51135499800 is a wasteful number, since it uses less digits than its factorization.
51135499800 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5413 (or 5398 counting only the distinct ones).
The product of its (nonzero) digits is 194400, while the sum is 45.
The spelling of 51135499800 in words is "fifty-one billion, one hundred thirty-five million, four hundred ninety-nine thousand, eight hundred".
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