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220337 = 1317997
BaseRepresentation
bin110101110010110001
3102012020122
4311302301
524022322
64420025
71605245
oct656261
9365218
10220337
111405a7
12a7615
13793a0
145a425
1545442
hex35cb1

220337 has 8 divisors (see below), whose sum is σ = 251496. Its totient is φ = 191232.

The previous prime is 220333. The next prime is 220351. The reversal of 220337 is 733022.

It can be written as a sum of positive squares in 4 ways, for example, as 59536 + 160801 = 244^2 + 401^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 220337 - 22 = 220333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 220337.

It is not an unprimeable number, because it can be changed into a prime (220333) 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, 278 + ... + 719.

It is an arithmetic number, because the mean of its divisors is an integer number (31437).

2220337 is an apocalyptic number.

It is an amenable number.

220337 is a deficient number, since it is larger than the sum of its proper divisors (31159).

220337 is a wasteful number, since it uses less digits than its factorization.

220337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027.

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 220337 is about 469.4006817209. The cubic root of 220337 is about 60.3989159638.

Adding to 220337 its reverse (733022), we get a palindrome (953359).

The spelling of 220337 in words is "two hundred twenty thousand, three hundred thirty-seven".

Divisors: 1 13 17 221 997 12961 16949 220337