Search a number
-
+
52102687 = 7131075351
BaseRepresentation
bin1100011011000…
…0011000011111
310122001002110011
43012300120133
5101314241222
65100424051
71201602610
oct306603037
9118032404
1052102687
112745757a
1215548027
13aa434c0
146cc3c07
154892c77
hex31b061f

52102687 has 16 divisors (see below), whose sum is σ = 64737792. Its totient is φ = 40831200.

The previous prime is 52102679. The next prime is 52102727. The reversal of 52102687 is 78620125.

52102687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52102687 - 23 = 52102679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52102187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7062 + ... + 12412.

It is an arithmetic number, because the mean of its divisors is an integer number (4046112).

Almost surely, 252102687 is an apocalyptic number.

52102687 is a deficient number, since it is larger than the sum of its proper divisors (12635105).

52102687 is a wasteful number, since it uses less digits than its factorization.

52102687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5478.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 52102687 is about 7218.2191016898. The cubic root of 52102687 is about 373.4966466787.

The spelling of 52102687 in words is "fifty-two million, one hundred two thousand, six hundred eighty-seven".

Divisors: 1 7 13 91 107 749 1391 5351 9737 37457 69563 486941 572557 4007899 7443241 52102687