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12118260 = 22357114361
BaseRepresentation
bin101110001110…
…100011110100
3211210200010110
4232032203310
511100241020
61111423020
7205001130
oct56164364
924720113
1012118260
1169276a0
124084a70
132683a8b
1418763c0
1510e58e0
hexb8e8f4

12118260 has 192 divisors, whose sum is σ = 43997184. Its totient is φ = 2419200.

The previous prime is 12118243. The next prime is 12118273. The reversal of 12118260 is 6281121.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 63 ways as a sum of consecutive naturals, for example, 198630 + ... + 198690.

It is an arithmetic number, because the mean of its divisors is an integer number (229152).

Almost surely, 212118260 is an apocalyptic number.

12118260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12118260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21998592).

12118260 is an abundant number, since it is smaller than the sum of its proper divisors (31878924).

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

12118260 is a wasteful number, since it uses less digits than its factorization.

12118260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 12118260 is about 3481.1291271655. The cubic root of 12118260 is about 229.6924686324.

Adding to 12118260 its reverse (6281121), we get a palindrome (18399381).

It can be divided in two parts, 121 and 18260, that added together give a palindrome (18381).

The spelling of 12118260 in words is "twelve million, one hundred eighteen thousand, two hundred sixty".