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1222230 = 235131311
BaseRepresentation
bin100101010011001010110
32022002120210
410222121112
5303102410
642110250
713250232
oct4523126
92262523
101222230
11765309
124ab386
1333a419
1423b5c2
15192220
hex12a656

1222230 has 32 divisors (see below), whose sum is σ = 2965248. Its totient is φ = 322400.

The previous prime is 1222229. The next prime is 1222231. The reversal of 1222230 is 322221.

It is an interprime number because it is at equal distance from previous prime (1222229) and next prime (1222231).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222231) 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, 3775 + ... + 4085.

It is an arithmetic number, because the mean of its divisors is an integer number (92664).

21222230 is an apocalyptic number.

1222230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222230 is an abundant number, since it is smaller than the sum of its proper divisors (1743018).

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

1222230 is a wasteful number, since it uses less digits than its factorization.

1222230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1222230 is about 1105.5451144119. The cubic root of 1222230 is about 106.9180377947.

Adding to 1222230 its reverse (322221), we get a palindrome (1544451).

Subtracting from 1222230 its reverse (322221), we obtain a palindrome (900009).

The spelling of 1222230 in words is "one million, two hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 131 262 311 393 622 655 786 933 1310 1555 1866 1965 3110 3930 4665 9330 40741 81482 122223 203705 244446 407410 611115 1222230