Search a number
-
+
53310687 = 331157139
BaseRepresentation
bin1100101101011…
…1010011011111
310201022110111220
43023113103133
5102121420222
65142344423
71215063513
oct313272337
9121273456
1053310687
1128102121
1215a2b113
13b0772b1
14711a143
154a30b5c
hex32d74df

53310687 has 8 divisors (see below), whose sum is σ = 71310720. Its totient is φ = 35425560.

The previous prime is 53310683. The next prime is 53310703. The reversal of 53310687 is 78601335.

It is a happy number.

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

It is not a de Polignac number, because 53310687 - 22 = 53310683 is a prime.

It is a Smith number, since the sum of its digits (33) 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 (53310683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27637 + ... + 29502.

It is an arithmetic number, because the mean of its divisors is an integer number (8913840).

Almost surely, 253310687 is an apocalyptic number.

53310687 is a deficient number, since it is larger than the sum of its proper divisors (18000033).

53310687 is a wasteful number, since it uses less digits than its factorization.

53310687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57453.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 53310687 is about 7301.4167803242. The cubic root of 53310687 is about 376.3611264708.

The spelling of 53310687 in words is "fifty-three million, three hundred ten thousand, six hundred eighty-seven".

Divisors: 1 3 311 933 57139 171417 17770229 53310687