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12235390 = 2529311361
BaseRepresentation
bin101110101011…
…001001111110
3212000121210121
4232223021332
511113013030
61114125154
7205666456
oct56531176
925017717
1012235390
1169a76a2
1241207ba
1326c519b
1418a6d66
15111a47a
hexbab27e

12235390 has 32 divisors (see below), whose sum is σ = 23535360. Its totient is φ = 4569600.

The previous prime is 12235381. The next prime is 12235397. The reversal of 12235390 is 9353221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12235397) 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, 8310 + ... + 9670.

It is an arithmetic number, because the mean of its divisors is an integer number (735480).

Almost surely, 212235390 is an apocalyptic number.

12235390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12235390 is a deficient number, since it is larger than the sum of its proper divisors (11299970).

12235390 is a wasteful number, since it uses less digits than its factorization.

12235390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 12235390 is about 3497.9122344622. The cubic root of 12235390 is about 230.4301339629.

The spelling of 12235390 in words is "twelve million, two hundred thirty-five thousand, three hundred ninety".

Divisors: 1 2 5 10 29 31 58 62 145 155 290 310 899 1361 1798 2722 4495 6805 8990 13610 39469 42191 78938 84382 197345 210955 394690 421910 1223539 2447078 6117695 12235390