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52866 = 2331189
BaseRepresentation
bin1100111010000010
32200112000
430322002
53142431
61044430
7310062
oct147202
980460
1052866
11367a0
1226716
131b0a8
14153a2
15109e6
hexce82

52866 has 32 divisors (see below), whose sum is σ = 129600. Its totient is φ = 15840.

The previous prime is 52861. The next prime is 52879. The reversal of 52866 is 66825.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52861) by changing a digit.

52866 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 550 + ... + 638.

It is an arithmetic number, because the mean of its divisors is an integer number (4050).

252866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64800).

52866 is an abundant number, since it is smaller than the sum of its proper divisors (76734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52866 is a wasteful number, since it uses less digits than its factorization.

52866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 105 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 52866 is about 229.9260750763. The cubic root of 52866 is about 37.5311740775.

The spelling of 52866 in words is "fifty-two thousand, eight hundred sixty-six".

Divisors: 1 2 3 6 9 11 18 22 27 33 54 66 89 99 178 198 267 297 534 594 801 979 1602 1958 2403 2937 4806 5874 8811 17622 26433 52866