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51470285 = 521148787
BaseRepresentation
bin1100010001010…
…1111111001101
310120211221221212
43010111333031
5101134022120
65035104205
71163330066
oct304257715
9116757855
1051470285
1127065429
12152a2065
13a8816b9
146b9b56d
1547ba6c5
hex3115fcd

51470285 has 8 divisors (see below), whose sum is σ = 62058336. Its totient is φ = 40980240.

The previous prime is 51470281. The next prime is 51470299. The reversal of 51470285 is 58207415.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51470285 - 22 = 51470281 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51470281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23339 + ... + 25448.

It is an arithmetic number, because the mean of its divisors is an integer number (7757292).

Almost surely, 251470285 is an apocalyptic number.

It is an amenable number.

51470285 is a deficient number, since it is larger than the sum of its proper divisors (10588051).

51470285 is a wasteful number, since it uses less digits than its factorization.

51470285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49003.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 51470285 is about 7174.2794063237. The cubic root of 51470285 is about 371.9793726759.

The spelling of 51470285 in words is "fifty-one million, four hundred seventy thousand, two hundred eighty-five".

Divisors: 1 5 211 1055 48787 243935 10294057 51470285