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223485 = 3547317
BaseRepresentation
bin110110100011111101
3102100120020
4312203331
524122420
64442353
71620363
oct664375
9370506
10223485
111429a9
12a93b9
137a952
145b633
1546340
hex368fd

223485 has 16 divisors (see below), whose sum is σ = 366336. Its totient is φ = 116288.

The previous prime is 223481. The next prime is 223493. The reversal of 223485 is 584322.

It is a cyclic number.

It is not a de Polignac number, because 223485 - 22 = 223481 is a prime.

223485 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547 + ... + 863.

It is an arithmetic number, because the mean of its divisors is an integer number (22896).

2223485 is an apocalyptic number.

It is an amenable number.

223485 is a deficient number, since it is larger than the sum of its proper divisors (142851).

223485 is a wasteful number, since it uses less digits than its factorization.

223485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372.

The product of its digits is 1920, while the sum is 24.

The square root of 223485 is about 472.7420015188. The cubic root of 223485 is about 60.6852007668.

The spelling of 223485 in words is "two hundred twenty-three thousand, four hundred eighty-five".

Divisors: 1 3 5 15 47 141 235 317 705 951 1585 4755 14899 44697 74495 223485