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53134642 = 21112012011
BaseRepresentation
bin1100101010110…
…0010100110010
310200222112000201
43022230110302
5102100302032
65134505414
71213431331
oct312542462
9120875021
1053134642
1127aa1930
121596526a
13b015122
1470b1d18
1549e88e7
hex32ac532

53134642 has 16 divisors (see below), whose sum is σ = 87063264. Its totient is φ = 24120000.

The previous prime is 53134607. The next prime is 53134649. The reversal of 53134642 is 24643135.

It is a self number, because there is not a number n which added to its sum of digits gives 53134642.

It is not an unprimeable number, because it can be changed into a prime (53134649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25417 + ... + 27427.

It is an arithmetic number, because the mean of its divisors is an integer number (5441454).

Almost surely, 253134642 is an apocalyptic number.

53134642 is a deficient number, since it is larger than the sum of its proper divisors (33928622).

53134642 is a wasteful number, since it uses less digits than its factorization.

53134642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225.

The product of its digits is 8640, while the sum is 28.

The square root of 53134642 is about 7289.3512742905. The cubic root of 53134642 is about 375.9463906140.

Adding to 53134642 its reverse (24643135), we get a palindrome (77777777).

The spelling of 53134642 in words is "fifty-three million, one hundred thirty-four thousand, six hundred forty-two".

Divisors: 1 2 11 22 1201 2011 2402 4022 13211 22121 26422 44242 2415211 4830422 26567321 53134642