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12240371 = 111385597
BaseRepresentation
bin101110101100…
…010111110011
3212000212122002
4232230113303
511113142441
61114204215
7206020133
oct56542763
925025562
1012240371
116a00410
12412366b
1326c7530
1418a8ac3
15111bb9b
hexbac5f3

12240371 has 8 divisors (see below), whose sum is σ = 14380464. Its totient is φ = 10271520.

The previous prime is 12240343. The next prime is 12240379. The reversal of 12240371 is 17304221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12240371 - 210 = 12239347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12240379) 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, 42656 + ... + 42941.

It is an arithmetic number, because the mean of its divisors is an integer number (1797558).

Almost surely, 212240371 is an apocalyptic number.

12240371 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12240371 is a deficient number, since it is larger than the sum of its proper divisors (2140093).

12240371 is a wasteful number, since it uses less digits than its factorization.

12240371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85621.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12240371 is about 3498.6241581513. The cubic root of 12240371 is about 230.4613989186.

Adding to 12240371 its reverse (17304221), we get a palindrome (29544592).

The spelling of 12240371 in words is "twelve million, two hundred forty thousand, three hundred seventy-one".

Divisors: 1 11 13 143 85597 941567 1112761 12240371