Base | Representation |
---|---|
bin | 1100001110100… |
… | …0001111001110 |
3 | 10120111102220110 |
4 | 3003220033032 |
5 | 101112023034 |
6 | 5031100450 |
7 | 1161616545 |
oct | 303501716 |
9 | 116442813 |
10 | 51282894 |
11 | 26a47663 |
12 | 15211726 |
13 | a817310 |
14 | 6b4d15c |
15 | 477ede9 |
hex | 30e83ce |
51282894 has 16 divisors (see below), whose sum is σ = 110455632. Its totient is φ = 15779328.
The previous prime is 51282877. The next prime is 51282899. The reversal of 51282894 is 49828215.
51282894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (51282899) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 328659 + ... + 328814.
It is an arithmetic number, because the mean of its divisors is an integer number (6903477).
Almost surely, 251282894 is an apocalyptic number.
51282894 is an abundant number, since it is smaller than the sum of its proper divisors (59172738).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
51282894 is a wasteful number, since it uses less digits than its factorization.
51282894 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 657491.
The product of its digits is 46080, while the sum is 39.
The square root of 51282894 is about 7161.2075797312. The cubic root of 51282894 is about 371.5273944006.
The spelling of 51282894 in words is "fifty-one million, two hundred eighty-two thousand, eight hundred ninety-four".
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