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53758044 = 22321493279
BaseRepresentation
bin1100110100010…
…0100001011100
310202011012011200
43031010201130
5102230224134
65200115500
71221635664
oct315044134
9122135150
1053758044
112838823a
1216005b90
13b1a2ac2
1471d51a4
154abd499
hex334485c

53758044 has 18 divisors (see below), whose sum is σ = 135888480. Its totient is φ = 17919336.

The previous prime is 53758039. The next prime is 53758057. The reversal of 53758044 is 44085735.

53758044 is a `hidden beast` number, since 5 + 37 + 580 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1493279 = 53758044 / (5 + 3 + 7 + 5 + 8 + 0 + 4 + 4).

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 746604 + ... + 746675.

It is an arithmetic number, because the mean of its divisors is an integer number (7549360).

Almost surely, 253758044 is an apocalyptic number.

It is an amenable number.

53758044 is an abundant number, since it is smaller than the sum of its proper divisors (82130436).

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

53758044 is a wasteful number, since it uses less digits than its factorization.

53758044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493289 (or 1493284 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 53758044 is about 7331.9877250306. The cubic root of 53758044 is about 377.4109410834.

The spelling of 53758044 in words is "fifty-three million, seven hundred fifty-eight thousand, forty-four".

Divisors: 1 2 3 4 6 9 12 18 36 1493279 2986558 4479837 5973116 8959674 13439511 17919348 26879022 53758044