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42711 = 323619
BaseRepresentation
bin1010011011010111
32011120220
422123113
52331321
6525423
7235344
oct123327
964526
1042711
112a0a9
1220873
1316596
14117cb
15c9c6
hexa6d7

42711 has 8 divisors (see below), whose sum is σ = 59520. Its totient is φ = 27192.

The previous prime is 42709. The next prime is 42719. The reversal of 42711 is 11724.

42711 = T18 + T19 + ... + T63.

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

It is not a de Polignac number, because 42711 - 21 = 42709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42719) 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, 241 + ... + 378.

It is an arithmetic number, because the mean of its divisors is an integer number (7440).

242711 is an apocalyptic number.

42711 is a deficient number, since it is larger than the sum of its proper divisors (16809).

42711 is a wasteful number, since it uses less digits than its factorization.

42711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645.

The product of its digits is 56, while the sum is 15.

The square root of 42711 is about 206.6663978493. Note that the first 3 decimals coincide. The cubic root of 42711 is about 34.9553171294.

The spelling of 42711 in words is "forty-two thousand, seven hundred eleven", and thus it is an iban number.

Divisors: 1 3 23 69 619 1857 14237 42711