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52520061 = 3119111747
BaseRepresentation
bin1100100001011…
…0010001111101
310122211021222110
43020112101331
5101421120221
65113404233
71205261466
oct310262175
9118737873
1052520061
1127712110
1215709679
13ab5b479
146d91d6d
154926776
hex321647d

52520061 has 16 divisors (see below), whose sum is σ = 76520448. Its totient is φ = 31777200.

The previous prime is 52520059. The next prime is 52520077. The reversal of 52520061 is 16002525.

52520061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52520061 - 21 = 52520059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52520051) 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 15 ways as a sum of consecutive naturals, for example, 29190 + ... + 30936.

It is an arithmetic number, because the mean of its divisors is an integer number (4782528).

Almost surely, 252520061 is an apocalyptic number.

It is an amenable number.

52520061 is a deficient number, since it is larger than the sum of its proper divisors (24000387).

52520061 is a wasteful number, since it uses less digits than its factorization.

52520061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 52520061 is about 7247.0725813945. The cubic root of 52520061 is about 374.4913067062.

Adding to 52520061 its reverse (16002525), we get a palindrome (68522586).

The spelling of 52520061 in words is "fifty-two million, five hundred twenty thousand, sixty-one".

Divisors: 1 3 11 33 911 1747 2733 5241 10021 19217 30063 57651 1591517 4774551 17506687 52520061