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52180717 = 227457503
BaseRepresentation
bin1100011100001…
…1011011101101
310122012001111011
43013003123231
5101324240332
65102225221
71202346241
oct307033355
9118161434
1052180717
1127500166
1215585211
13aa6cb84
146d04421
1548aae47
hex31c36ed

52180717 has 8 divisors (see below), whose sum is σ = 52629696. Its totient is φ = 51734112.

The previous prime is 52180703. The next prime is 52180729. The reversal of 52180717 is 71708125.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52180717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52180757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103488 + ... + 103990.

It is an arithmetic number, because the mean of its divisors is an integer number (6578712).

Almost surely, 252180717 is an apocalyptic number.

It is an amenable number.

52180717 is a deficient number, since it is larger than the sum of its proper divisors (448979).

52180717 is a wasteful number, since it uses less digits than its factorization.

52180717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 52180717 is about 7223.6221523554. The cubic root of 52180717 is about 373.6830056317.

The spelling of 52180717 in words is "fifty-two million, one hundred eighty thousand, seven hundred seventeen".

Divisors: 1 227 457 503 103739 114181 229871 52180717