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53129297 = 1317872287
BaseRepresentation
bin1100101010101…
…1000001010001
310200222020200202
43022223001101
5102100114142
65134424545
71213406624
oct312530121
9120866622
1053129297
1127a98911
1215962155
13b012870
1470addbb
1549e7032
hex32ab051

53129297 has 8 divisors (see below), whose sum is σ = 57273216. Its totient is φ = 48993552.

The previous prime is 53129291. The next prime is 53129309. The reversal of 53129297 is 79292135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53129297 - 24 = 53129281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53129297.

It is not an unprimeable number, because it can be changed into a prime (53129291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22088 + ... + 24374.

It is an arithmetic number, because the mean of its divisors is an integer number (7159152).

Almost surely, 253129297 is an apocalyptic number.

It is an amenable number.

53129297 is a deficient number, since it is larger than the sum of its proper divisors (4143919).

53129297 is a wasteful number, since it uses less digits than its factorization.

53129297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4087.

The product of its digits is 34020, while the sum is 38.

The square root of 53129297 is about 7288.9846343644. The cubic root of 53129297 is about 375.9337842692.

The spelling of 53129297 in words is "fifty-three million, one hundred twenty-nine thousand, two hundred ninety-seven".

Divisors: 1 13 1787 2287 23231 29731 4086869 53129297