| Base | Representation |
|---|---|
| bin | 100010000000110000… |
| … | …1111101011010000000 |
| 3 | 20222112021212201100000 |
| 4 | 1010001201331122000 |
| 5 | 2144041232423040 |
| 6 | 53315411200000 |
| 7 | 5164000543350 |
| oct | 1040141753200 |
| 9 | 228467781300 |
| 10 | 73040123520 |
| 11 | 28a81277951 |
| 12 | 121a4ba6000 |
| 13 | 6b70239a00 |
| 14 | 376c6a4b60 |
| 15 | 1d7747d130 |
| hex | 110187d680 |
73040123520 has 1152 divisors, whose sum is σ = 324501690240. Its totient is φ = 15371845632.
The previous prime is 73040123509. The next prime is 73040123531. The reversal of 73040123520 is 2532104037.
73040123520 is a `hidden beast` number, since 7 + 3 + 0 + 401 + 235 + 20 = 666.
It is an interprime number because it is at equal distance from previous prime (73040123509) and next prime (73040123531).
It is a tau number, because it is divible by the number of its divisors (1152).
It is a Harshad number since it is a multiple of its sum of digits (27).
It is an unprimeable number.
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 143 ways as a sum of consecutive naturals, for example, 183979962 + ... + 183980358.
It is an arithmetic number, because the mean of its divisors is an integer number (281685495).
Almost surely, 273040123520 is an apocalyptic number.
73040123520 is a gapful number since it is divisible by the number (70) 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 73040123520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162250845120).
73040123520 is an abundant number, since it is smaller than the sum of its proper divisors (251461566720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
73040123520 is a wasteful number, since it uses less digits than its factorization.
73040123520 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 464 (or 427 counting only the distinct ones).
The product of its (nonzero) digits is 5040, while the sum is 27.
Adding to 73040123520 its reverse (2532104037), we get a palindrome (75572227557).
The spelling of 73040123520 in words is "seventy-three billion, forty million, one hundred twenty-three thousand, five hundred twenty".
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