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220369 is a prime number
BaseRepresentation
bin110101110011010001
3102012021211
4311303101
524022434
64420121
71605322
oct656321
9365254
10220369
11140626
12a7641
13793c6
145a449
1545464
hex35cd1

220369 has 2 divisors, whose sum is σ = 220370. Its totient is φ = 220368.

The previous prime is 220361. The next prime is 220373. The reversal of 220369 is 963022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169744 + 50625 = 412^2 + 225^2 .

It is a cyclic number.

It is not a de Polignac number, because 220369 - 23 = 220361 is a prime.

It is a super-2 number, since 2×2203692 = 97124992322, which contains 22 as substring.

It is a nialpdrome in base 12.

It is not a weakly prime, because it can be changed into another prime (220361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110184 + 110185.

It is an arithmetic number, because the mean of its divisors is an integer number (110185).

2220369 is an apocalyptic number.

It is an amenable number.

220369 is a deficient number, since it is larger than the sum of its proper divisors (1).

220369 is an equidigital number, since it uses as much as digits as its factorization.

220369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 220369 is about 469.4347665012. The cubic root of 220369 is about 60.4018397755.

The spelling of 220369 in words is "two hundred twenty thousand, three hundred sixty-nine".