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12303838 = 2311911039
BaseRepresentation
bin101110111011…
…110111011110
3212011002200201
4232323313132
511122210323
61115414114
7206403151
oct56736736
925132621
1012303838
116a44068
12415433a
13271a3a1
1418c3c98
1511308ad
hexbbbdde

12303838 has 16 divisors (see below), whose sum is σ = 19169280. Its totient is φ = 5916600.

The previous prime is 12303829. The next prime is 12303839. The reversal of 12303838 is 83830321.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303839) 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, 11323 + ... + 12361.

It is an arithmetic number, because the mean of its divisors is an integer number (1198080).

Almost surely, 212303838 is an apocalyptic number.

12303838 is a deficient number, since it is larger than the sum of its proper divisors (6865442).

12303838 is a wasteful number, since it uses less digits than its factorization.

12303838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 12303838 is about 3507.6827108506. The cubic root of 12303838 is about 230.8590308233.

The spelling of 12303838 in words is "twelve million, three hundred three thousand, eight hundred thirty-eight".

Divisors: 1 2 31 62 191 382 1039 2078 5921 11842 32209 64418 198449 396898 6151919 12303838