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52601997 = 3783103293
BaseRepresentation
bin1100100010101…
…0010010001101
310122222110101010
43020222102031
5101431230442
65115235433
71206052410
oct310522215
9118873333
1052601997
1127768728
1215748b79
13ab89856
146db3b77
154940b9c
hex322a48d

52601997 has 32 divisors (see below), whose sum is σ = 82188288. Its totient is φ = 29307456.

The previous prime is 52601963. The next prime is 52602007. The reversal of 52601997 is 79910625.

It is not a de Polignac number, because 52601997 - 28 = 52601741 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52601797) 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 31 ways as a sum of consecutive naturals, for example, 179383 + ... + 179675.

It is an arithmetic number, because the mean of its divisors is an integer number (2568384).

Almost surely, 252601997 is an apocalyptic number.

It is an amenable number.

52601997 is a deficient number, since it is larger than the sum of its proper divisors (29586291).

52601997 is a wasteful number, since it uses less digits than its factorization.

52601997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 52601997 is about 7252.7234195163. The cubic root of 52601997 is about 374.6859521818.

The spelling of 52601997 in words is "fifty-two million, six hundred one thousand, nine hundred ninety-seven".

Divisors: 1 3 7 21 83 103 249 293 309 581 721 879 1743 2051 2163 6153 8549 24319 25647 30179 59843 72957 90537 170233 179529 211253 510699 633759 2504857 7514571 17533999 52601997