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268223 = 192743
BaseRepresentation
bin1000001011110111111
3111121221012
41001132333
532040343
65425435
72164664
oct1013677
9447835
10268223
1117357a
1210b27b
1395117
146da6b
1554718
hex417bf

268223 has 6 divisors (see below), whose sum is σ = 283464. Its totient is φ = 253764.

The previous prime is 268211. The next prime is 268237. The reversal of 268223 is 322862.

It is not a de Polignac number, because 268223 - 24 = 268207 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11 + ... + 732.

It is an arithmetic number, because the mean of its divisors is an integer number (47244).

2268223 is an apocalyptic number.

268223 is a deficient number, since it is larger than the sum of its proper divisors (15241).

268223 is an equidigital number, since it uses as much as digits as its factorization.

268223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 762 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 268223 is about 517.9025004767. The cubic root of 268223 is about 64.4909347675.

The spelling of 268223 in words is "two hundred sixty-eight thousand, two hundred twenty-three".

Divisors: 1 19 361 743 14117 268223