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51082485 = 3529117431
BaseRepresentation
bin1100001011011…
…1010011110101
310120010020222220
43002313103311
5101034114420
65022512553
71160123346
oct302672365
9116106886
1051082485
1126920033
1215135759
13a77702c
146ada0cd
154740840
hex30b74f5

51082485 has 16 divisors (see below), whose sum is σ = 84551040. Its totient is φ = 26304320.

The previous prime is 51082477. The next prime is 51082489. The reversal of 51082485 is 58428015.

It is not a de Polignac number, because 51082485 - 23 = 51082477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51082489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58281 + ... + 59150.

It is an arithmetic number, because the mean of its divisors is an integer number (5284440).

Almost surely, 251082485 is an apocalyptic number.

It is an amenable number.

51082485 is a deficient number, since it is larger than the sum of its proper divisors (33468555).

51082485 is a wasteful number, since it uses less digits than its factorization.

51082485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117468.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 51082485 is about 7147.2012004700. The cubic root of 51082485 is about 371.0427972318.

The spelling of 51082485 in words is "fifty-one million, eighty-two thousand, four hundred eighty-five".

Divisors: 1 3 5 15 29 87 145 435 117431 352293 587155 1761465 3405499 10216497 17027495 51082485