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52578085 = 578916879
BaseRepresentation
bin1100100010010…
…0011100100101
310122221020120111
43020210130211
5101424444320
65114533021
71205622610
oct310443445
9118836514
1052578085
112775176a
1215737171
13ab7b9c1
146da9177
154938a5a
hex3224725

52578085 has 16 divisors (see below), whose sum is σ = 72921600. Its totient is φ = 35646336.

The previous prime is 52578083. The next prime is 52578091. The reversal of 52578085 is 58087525.

It is a cyclic number.

It is not a de Polignac number, because 52578085 - 21 = 52578083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52578083) 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 15 ways as a sum of consecutive naturals, for example, 5325 + ... + 11554.

It is an arithmetic number, because the mean of its divisors is an integer number (4557600).

Almost surely, 252578085 is an apocalyptic number.

It is an amenable number.

52578085 is a deficient number, since it is larger than the sum of its proper divisors (20343515).

52578085 is a wasteful number, since it uses less digits than its factorization.

52578085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16980.

The product of its (nonzero) digits is 112000, while the sum is 40.

The square root of 52578085 is about 7251.0747479253. The cubic root of 52578085 is about 374.6291682258.

The spelling of 52578085 in words is "fifty-two million, five hundred seventy-eight thousand, eighty-five".

Divisors: 1 5 7 35 89 445 623 3115 16879 84395 118153 590765 1502231 7511155 10515617 52578085