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52205413 = 134015801
BaseRepresentation
bin1100011100100…
…1011101100101
310122020022100211
43013021131211
5101331033123
65102535421
71202511241
oct307113545
9118208324
1052205413
1127517777
1215597571
13aa7b1a0
146d0d421
1548b340d
hex31c9765

52205413 has 4 divisors (see below), whose sum is σ = 56221228. Its totient is φ = 48189600.

The previous prime is 52205411. The next prime is 52205431. The reversal of 52205413 is 31450225.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19509889 + 32695524 = 4417^2 + 5718^2 .

It is a cyclic number.

It is not a de Polignac number, because 52205413 - 21 = 52205411 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 (52205411) 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, 2007888 + ... + 2007913.

It is an arithmetic number, because the mean of its divisors is an integer number (14055307).

Almost surely, 252205413 is an apocalyptic number.

It is an amenable number.

52205413 is a deficient number, since it is larger than the sum of its proper divisors (4015815).

52205413 is a wasteful number, since it uses less digits than its factorization.

52205413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015814.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 52205413 is about 7225.3313418832. The cubic root of 52205413 is about 373.7419483506.

Adding to 52205413 its reverse (31450225), we get a palindrome (83655638).

The spelling of 52205413 in words is "fifty-two million, two hundred five thousand, four hundred thirteen".

Divisors: 1 13 4015801 52205413