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51025712 = 247144917
BaseRepresentation
bin1100001010100…
…1011100110000
310120000101010012
43002221130300
5101030310322
65021354052
71156466003
oct302513460
9116011105
1051025712
1126891411
1215108928
13a75723a
146ac353a
15472dae2
hex30a9730

51025712 has 20 divisors (see below), whose sum is σ = 100256976. Its totient is φ = 25152960.

The previous prime is 51025699. The next prime is 51025717. The reversal of 51025712 is 21752015.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51025717) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 21323 + ... + 23594.

Almost surely, 251025712 is an apocalyptic number.

It is an amenable number.

51025712 is a deficient number, since it is larger than the sum of its proper divisors (49231264).

51025712 is a wasteful number, since it uses less digits than its factorization.

51025712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44996 (or 44990 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 51025712 is about 7143.2284017802. The cubic root of 51025712 is about 370.9052874670.

Adding to 51025712 its reverse (21752015), we get a palindrome (72777727).

The spelling of 51025712 in words is "fifty-one million, twenty-five thousand, seven hundred twelve".

Divisors: 1 2 4 8 16 71 142 284 568 1136 44917 89834 179668 359336 718672 3189107 6378214 12756428 25512856 51025712