| Base | Representation |
|---|---|
| bin | 1100001111000… |
| … | …0011110101010 |
| 3 | 10120120011012200 |
| 4 | 3003300132222 |
| 5 | 101114113100 |
| 6 | 5031521030 |
| 7 | 1162120140 |
| oct | 303603652 |
| 9 | 116504180 |
| 10 | 51316650 |
| 11 | 26a6aa60 |
| 12 | 15229176 |
| 13 | a8297a8 |
| 14 | 6b5b590 |
| 15 | 4789e00 |
| hex | 30f07aa |
51316650 has 144 divisors (see below), whose sum is σ = 172006848. Its totient is φ = 10656000.
The previous prime is 51316637. The next prime is 51316709. The reversal of 51316650 is 5661315.
It is a happy number.
51316650 is a `hidden beast` number, since 5 + 1 + 3 + 1 + 6 + 650 = 666.
51316650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
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 71 ways as a sum of consecutive naturals, for example, 33910 + ... + 35390.
It is an arithmetic number, because the mean of its divisors is an integer number (1194492).
Almost surely, 251316650 is an apocalyptic number.
51316650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 51316650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86003424).
51316650 is an abundant number, since it is smaller than the sum of its proper divisors (120690198).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
51316650 is a wasteful number, since it uses less digits than its factorization.
51316650 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1517 (or 1509 counting only the distinct ones).
The product of its (nonzero) digits is 2700, while the sum is 27.
The square root of 51316650 is about 7163.5640570878. The cubic root of 51316650 is about 371.6088934936.
Adding to 51316650 its reverse (5661315), we get a palindrome (56977965).
It can be divided in two parts, 5131 and 6650, that added together give a triangular number (11781 = T153).
The spelling of 51316650 in words is "fifty-one million, three hundred sixteen thousand, six hundred fifty".
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