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52580161 = 292103607
BaseRepresentation
bin1100100010010…
…0111101000001
310122221100102101
43020210331001
5101430031121
65114550401
71205631634
oct310447501
9118840371
1052580161
1127753287
1215738401
13ab7c92a
146da9c1b
154939491
hex3224f41

52580161 has 12 divisors (see below), whose sum is σ = 55075072. Its totient is φ = 50191344.

The previous prime is 52580153. The next prime is 52580173. The reversal of 52580161 is 16108525.

It is not a de Polignac number, because 52580161 - 23 = 52580153 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52580131) 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 11 ways as a sum of consecutive naturals, for example, 86320 + ... + 86926.

Almost surely, 252580161 is an apocalyptic number.

It is an amenable number.

52580161 is a deficient number, since it is larger than the sum of its proper divisors (2494911).

52580161 is a wasteful number, since it uses less digits than its factorization.

52580161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768 (or 739 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 52580161 is about 7251.2178977052. The cubic root of 52580161 is about 374.6340987966.

Adding to 52580161 its reverse (16108525), we get a palindrome (68688686).

The spelling of 52580161 in words is "fifty-two million, five hundred eighty thousand, one hundred sixty-one".

Divisors: 1 29 103 607 841 2987 17603 62521 86623 510487 1813109 52580161