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224146 = 21337233
BaseRepresentation
bin110110101110010010
3102101110201
4312232102
524133041
64445414
71622326
oct665622
9371421
10224146
1114344a
12a986a
137b040
145b986
1546631
hex36b92

224146 has 16 divisors (see below), whose sum is σ = 373464. Its totient is φ = 100224.

The previous prime is 224131. The next prime is 224149. The reversal of 224146 is 641422.

Adding to 224146 its reverse (641422), we get a palindrome (865568).

It can be written as a sum of positive squares in 4 ways, for example, as 168921 + 55225 = 411^2 + 235^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224149) 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, 846 + ... + 1078.

2224146 is an apocalyptic number.

224146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

224146 is a deficient number, since it is larger than the sum of its proper divisors (149318).

224146 is a wasteful number, since it uses less digits than its factorization.

224146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285.

The product of its digits is 384, while the sum is 19.

The square root of 224146 is about 473.4405981747. The cubic root of 224146 is about 60.7449712739.

The spelling of 224146 in words is "two hundred twenty-four thousand, one hundred forty-six".

Divisors: 1 2 13 26 37 74 233 466 481 962 3029 6058 8621 17242 112073 224146