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66286023 = 323960667
BaseRepresentation
bin1111110011011…
…1000111000111
311121201200022220
43330313013013
5113432123043
610324423423
71433264466
oct374670707
9147650286
1066286023
1134464741
121a247b73
131096b1cb
148b369dd
155c45483
hex3f371c7

66286023 has 8 divisors (see below), whose sum is σ = 92224128. Its totient is φ = 42269304.

The previous prime is 66285983. The next prime is 66286037. The reversal of 66286023 is 32068266.

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

It is not a de Polignac number, because 66286023 - 28 = 66285767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66286063) 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, 480265 + ... + 480402.

It is an arithmetic number, because the mean of its divisors is an integer number (11528016).

Almost surely, 266286023 is an apocalyptic number.

66286023 is a deficient number, since it is larger than the sum of its proper divisors (25938105).

66286023 is a wasteful number, since it uses less digits than its factorization.

66286023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960693.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 66286023 is about 8141.6228726219. The cubic root of 66286023 is about 404.7069423921.

The spelling of 66286023 in words is "sixty-six million, two hundred eighty-six thousand, twenty-three".

Divisors: 1 3 23 69 960667 2882001 22095341 66286023