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220124 = 22113487
BaseRepresentation
bin110101101111011100
3102011221202
4311233130
524020444
64415032
71604522
oct655734
9364852
10220124
11140423
12a7478
1379268
145a312
154534e
hex35bdc

220124 has 12 divisors (see below), whose sum is σ = 389424. Its totient is φ = 108864.

The previous prime is 220123. The next prime is 220141. The reversal of 220124 is 421022.

Adding to 220124 its reverse (421022), we get a palindrome (641146).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209 + ... + 695.

It is an arithmetic number, because the mean of its divisors is an integer number (32452).

2220124 is an apocalyptic number.

It is an amenable number.

220124 is a deficient number, since it is larger than the sum of its proper divisors (169300).

220124 is a wasteful number, since it uses less digits than its factorization.

With its successor (220125) it forms an eRAP, since the sums of their prime factors are consecutive (604 and 605).

220124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 220124 is about 469.1737418057. The cubic root of 220124 is about 60.3794471246.

The spelling of 220124 in words is "two hundred twenty thousand, one hundred twenty-four", and thus it is an iban number.

Divisors: 1 2 4 113 226 452 487 974 1948 55031 110062 220124