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12254238 = 2323121961
BaseRepresentation
bin101110101111…
…110000011110
3212001120122200
4232233300132
511114113423
61114352330
7206105433
oct56576036
925046580
1012254238
116a0a877
12412b6a6
132700939
1418adb8a
151120d43
hexbafc1e

12254238 has 24 divisors (see below), whose sum is σ = 27408576. Its totient is φ = 3952800.

The previous prime is 12254227. The next prime is 12254251. The reversal of 12254238 is 83245221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10423 + ... + 11538.

It is an arithmetic number, because the mean of its divisors is an integer number (1142024).

Almost surely, 212254238 is an apocalyptic number.

12254238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12254238 is an abundant number, since it is smaller than the sum of its proper divisors (15154338).

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

12254238 is a wasteful number, since it uses less digits than its factorization.

12254238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22000 (or 21997 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 12254238 is about 3500.6053762171. The cubic root of 12254238 is about 230.5483952508.

Adding to 12254238 its reverse (83245221), we get a palindrome (95499459).

The spelling of 12254238 in words is "twelve million, two hundred fifty-four thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 18 31 62 93 186 279 558 21961 43922 65883 131766 197649 395298 680791 1361582 2042373 4084746 6127119 12254238