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220047 = 3411789
BaseRepresentation
bin110101101110001111
3102011211220
4311232033
524020142
64414423
71604352
oct655617
9364756
10220047
11140363
12a7413
1379209
145a299
15452ec
hex35b8f

220047 has 8 divisors (see below), whose sum is σ = 300720. Its totient is φ = 143040.

The previous prime is 220021. The next prime is 220057. The reversal of 220047 is 740022.

220047 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 220047 - 26 = 219983 is a prime.

220047 is strictly pandigital in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220057) 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, 772 + ... + 1017.

It is an arithmetic number, because the mean of its divisors is an integer number (37590).

2220047 is an apocalyptic number.

220047 is a deficient number, since it is larger than the sum of its proper divisors (80673).

220047 is a wasteful number, since it uses less digits than its factorization.

220047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833.

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

The square root of 220047 is about 469.0916754751. The cubic root of 220047 is about 60.3724060029.

Adding to 220047 its reverse (740022), we get a palindrome (960069).

The spelling of 220047 in words is "two hundred twenty thousand, forty-seven", and thus it is an iban number.

Divisors: 1 3 41 123 1789 5367 73349 220047