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51575712 = 2531075021
BaseRepresentation
bin1100010010111…
…1101110100000
310121001022120120
43010233232200
5101200410322
65041240240
71164246336
oct304575640
9117038516
1051575712
1127127661
1215333080
13a8ba696
146bc7b56
1547dba5c
hex312fba0

51575712 has 48 divisors (see below), whose sum is σ = 136678752. Its totient is φ = 17027840.

The previous prime is 51575701. The next prime is 51575737. The reversal of 51575712 is 21757515.

51575712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

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, 7762 + ... + 12782.

It is an arithmetic number, because the mean of its divisors is an integer number (2847474).

Almost surely, 251575712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51575712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68339376).

51575712 is an abundant number, since it is smaller than the sum of its proper divisors (85103040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51575712 is a wasteful number, since it uses less digits than its factorization.

51575712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5141 (or 5133 counting only the distinct ones).

The product of its digits is 12250, while the sum is 33.

The square root of 51575712 is about 7181.6232148450. The cubic root of 51575712 is about 372.2331755826.

The spelling of 51575712 in words is "fifty-one million, five hundred seventy-five thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 107 214 321 428 642 856 1284 1712 2568 3424 5021 5136 10042 10272 15063 20084 30126 40168 60252 80336 120504 160672 241008 482016 537247 1074494 1611741 2148988 3223482 4297976 6446964 8595952 12893928 17191904 25787856 51575712