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51764492 = 2213995471
BaseRepresentation
bin1100010101110…
…1110100001100
310121101220112102
43011131310030
5101222430432
65045254232
71165663613
oct305356414
9117356472
1051764492
112724647a
1215404378
13a9555a0
146c3687a
154827962
hex315dd0c

51764492 has 12 divisors (see below), whose sum is σ = 97556256. Its totient is φ = 23891280.

The previous prime is 51764459. The next prime is 51764497. The reversal of 51764492 is 29446715.

51764492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51764497) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 497684 + ... + 497787.

It is an arithmetic number, because the mean of its divisors is an integer number (8129688).

Almost surely, 251764492 is an apocalyptic number.

51764492 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51764492 is a deficient number, since it is larger than the sum of its proper divisors (45791764).

51764492 is a wasteful number, since it uses less digits than its factorization.

51764492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995488 (or 995486 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 51764492 is about 7194.7544780903. The cubic root of 51764492 is about 372.6867780930.

The spelling of 51764492 in words is "fifty-one million, seven hundred sixty-four thousand, four hundred ninety-two".

Divisors: 1 2 4 13 26 52 995471 1990942 3981884 12941123 25882246 51764492