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42207 = 3111279
BaseRepresentation
bin1010010011011111
32010220020
422103133
52322312
6523223
7234024
oct122337
963806
1042207
1129790
1220513
1316299
141154b
15c78c
hexa4df

42207 has 8 divisors (see below), whose sum is σ = 61440. Its totient is φ = 25560.

The previous prime is 42197. The next prime is 42209. The reversal of 42207 is 70224.

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

It is not a de Polignac number, because 42207 - 210 = 41183 is a prime.

It is a plaindrome in base 8.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 42207.

It is not an unprimeable number, because it can be changed into a prime (42209) 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, 607 + ... + 672.

It is an arithmetic number, because the mean of its divisors is an integer number (7680).

242207 is an apocalyptic number.

42207 is a deficient number, since it is larger than the sum of its proper divisors (19233).

42207 is a wasteful number, since it uses less digits than its factorization.

42207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293.

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 42207 is about 205.4434228687. The cubic root of 42207 is about 34.8172790397.

It can be divided in two parts, 4 and 2207, that added together give a triangular number (2211 = T66).

The spelling of 42207 in words is "forty-two thousand, two hundred seven", and thus it is an iban number.

Divisors: 1 3 11 33 1279 3837 14069 42207