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222530 = 25711172
BaseRepresentation
bin110110010101000010
3102022020212
4312111002
524110110
64434122
71614530
oct662502
9368225
10222530
11142210
12a8942
137a399
145b150
1545e05
hex36542

222530 has 48 divisors (see below), whose sum is σ = 530496. Its totient is φ = 65280.

The previous prime is 222527. The next prime is 222533. The reversal of 222530 is 35222.

It is an interprime number because it is at equal distance from previous prime (222527) and next prime (222533).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (222533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13082 + ... + 13098.

It is an arithmetic number, because the mean of its divisors is an integer number (11052).

2222530 is an apocalyptic number.

222530 is an abundant number, since it is smaller than the sum of its proper divisors (307966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222530 is a wasteful number, since it uses less digits than its factorization.

222530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 222530 is about 471.7308554674. The cubic root of 222530 is about 60.5986369948.

Adding to 222530 its reverse (35222), we get a palindrome (257752).

It can be divided in two parts, 22 and 2530, that added together give a palindrome (2552).

The spelling of 222530 in words is "two hundred twenty-two thousand, five hundred thirty".

Divisors: 1 2 5 7 10 11 14 17 22 34 35 55 70 77 85 110 119 154 170 187 238 289 374 385 578 595 770 935 1190 1309 1445 1870 2023 2618 2890 3179 4046 6358 6545 10115 13090 15895 20230 22253 31790 44506 111265 222530