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12233620 = 225787383
BaseRepresentation
bin101110101010…
…101110010100
3212000112101001
4232222232110
511112433440
61114113044
7205661350
oct56525624
925015331
1012233620
1169a6333
12411b784
1326c4439
1418a6460
151119b9a
hexbaab94

12233620 has 24 divisors (see below), whose sum is σ = 29361024. Its totient is φ = 4194336.

The previous prime is 12233593. The next prime is 12233647. The reversal of 12233620 is 2633221.

It is an interprime number because it is at equal distance from previous prime (12233593) and next prime (12233647).

It is a super-2 number, since 2×122336202 = 299322916608800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43552 + ... + 43831.

It is an arithmetic number, because the mean of its divisors is an integer number (1223376).

Almost surely, 212233620 is an apocalyptic number.

12233620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12233620 is an abundant number, since it is smaller than the sum of its proper divisors (17127404).

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

12233620 is a wasteful number, since it uses less digits than its factorization.

12233620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87399 (or 87397 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 12233620 is about 3497.6592172480. The cubic root of 12233620 is about 230.4190219072.

Adding to 12233620 its reverse (2633221), we get a palindrome (14866841).

The spelling of 12233620 in words is "twelve million, two hundred thirty-three thousand, six hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 87383 174766 349532 436915 611681 873830 1223362 1747660 2446724 3058405 6116810 12233620