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52917919 = 73724903
BaseRepresentation
bin1100100111011…
…1011010011111
310200120111201221
43021313122133
5102021333134
65130114211
71211536435
oct311673237
9120514657
1052917919
112796401a
121587b967
13ac6a5a2
147056d55
1549a45b4
hex327769f

52917919 has 4 divisors (see below), whose sum is σ = 53642896. Its totient is φ = 52192944.

The previous prime is 52917863. The next prime is 52917929. The reversal of 52917919 is 91971925.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52917919 - 29 = 52917407 is a prime.

It is a super-2 number, since 2×529179192 = 5600612302581122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52917929) 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 3 ways as a sum of consecutive naturals, for example, 362379 + ... + 362524.

It is an arithmetic number, because the mean of its divisors is an integer number (13410724).

Almost surely, 252917919 is an apocalyptic number.

52917919 is a deficient number, since it is larger than the sum of its proper divisors (724977).

52917919 is an equidigital number, since it uses as much as digits as its factorization.

52917919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724976.

The product of its digits is 51030, while the sum is 43.

The square root of 52917919 is about 7274.4703587272. The cubic root of 52917919 is about 375.4345634770.

The spelling of 52917919 in words is "fifty-two million, nine hundred seventeen thousand, nine hundred nineteen".

Divisors: 1 73 724903 52917919