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52404061 = 131400031
BaseRepresentation
bin1100011111100…
…1111101011101
310122121101212011
43013321331131
5101403412221
65111111221
71204266343
oct307717535
9118541764
1052404061
1127642a46
1215672511
13ab1a728
146d61993
1549021e1
hex31f9f5d

52404061 has 4 divisors (see below), whose sum is σ = 52804224. Its totient is φ = 52003900.

The previous prime is 52404059. The next prime is 52404067. The reversal of 52404061 is 16040425.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52404061 - 21 = 52404059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52404067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199885 + ... + 200146.

It is an arithmetic number, because the mean of its divisors is an integer number (13201056).

Almost surely, 252404061 is an apocalyptic number.

It is an amenable number.

52404061 is a deficient number, since it is larger than the sum of its proper divisors (400163).

52404061 is a wasteful number, since it uses less digits than its factorization.

52404061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400162.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 52404061 is about 7239.0649258036. The cubic root of 52404061 is about 374.2153930047.

Adding to 52404061 its reverse (16040425), we get a palindrome (68444486).

The spelling of 52404061 in words is "fifty-two million, four hundred four thousand, sixty-one".

Divisors: 1 131 400031 52404061