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51032842 = 273798519
BaseRepresentation
bin1100001010101…
…1001100001010
310120000201220021
43002223030022
5101031022332
65021451054
71156525540
oct302531412
9116021807
1051032842
1126896803
1215110a8a
13a75a563
146ac5d90
154730c97
hex30ab30a

51032842 has 16 divisors (see below), whose sum is σ = 89850240. Its totient is φ = 21279888.

The previous prime is 51032809. The next prime is 51032887. The reversal of 51032842 is 24823015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48742 + ... + 49777.

It is an arithmetic number, because the mean of its divisors is an integer number (5615640).

Almost surely, 251032842 is an apocalyptic number.

51032842 is a deficient number, since it is larger than the sum of its proper divisors (38817398).

51032842 is a wasteful number, since it uses less digits than its factorization.

51032842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98565.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 51032842 is about 7143.7274584071. The cubic root of 51032842 is about 370.9225626238.

Adding to 51032842 its reverse (24823015), we get a palindrome (75855857).

The spelling of 51032842 in words is "fifty-one million, thirty-two thousand, eight hundred forty-two".

Divisors: 1 2 7 14 37 74 259 518 98519 197038 689633 1379266 3645203 7290406 25516421 51032842