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52638477 = 3177114537
BaseRepresentation
bin1100100011001…
…1001100001101
310200001022102020
43020303030031
5101433412402
65120120353
71206263643
oct310631415
9120038366
1052638477
1127793081
12157660b9
13aba0338
146dc3193
15494b8bc
hex323330d

52638477 has 16 divisors (see below), whose sum is σ = 75364992. Its totient is φ = 32560640.

The previous prime is 52638463. The next prime is 52638503. The reversal of 52638477 is 77483625.

It is a cyclic number.

It is not a de Polignac number, because 52638477 - 26 = 52638413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52638437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3648 + ... + 10889.

It is an arithmetic number, because the mean of its divisors is an integer number (4710312).

Almost surely, 252638477 is an apocalyptic number.

It is an amenable number.

52638477 is a deficient number, since it is larger than the sum of its proper divisors (22726515).

52638477 is a wasteful number, since it uses less digits than its factorization.

52638477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14628.

The product of its digits is 282240, while the sum is 42.

The square root of 52638477 is about 7255.2379009926. The cubic root of 52638477 is about 374.7725482920.

The spelling of 52638477 in words is "fifty-two million, six hundred thirty-eight thousand, four hundred seventy-seven".

Divisors: 1 3 17 51 71 213 1207 3621 14537 43611 247129 741387 1032127 3096381 17546159 52638477