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14231240 = 235715011
BaseRepresentation
bin110110010010…
…011011001000
3222210000120222
4312102123020
512120344430
61225005212
7231651332
oct66223310
928700528
1014231240
118040161
124923808
132c4376a
141c66452
1513b19e5
hexd926c8

14231240 has 32 divisors (see below), whose sum is σ = 32477760. Its totient is φ = 5611200.

The previous prime is 14231233. The next prime is 14231251. The reversal of 14231240 is 4213241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335 + ... + 5345.

It is an arithmetic number, because the mean of its divisors is an integer number (1014930).

Almost surely, 214231240 is an apocalyptic number.

14231240 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 14231240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16238880).

14231240 is an abundant number, since it is smaller than the sum of its proper divisors (18246520).

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

14231240 is a wasteful number, since it uses less digits than its factorization.

14231240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093 (or 5089 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 14231240 is about 3772.4315765829. The cubic root of 14231240 is about 242.3339423597. Note that the first 3 decimals are identical.

Adding to 14231240 its reverse (4213241), we get a palindrome (18444481).

The spelling of 14231240 in words is "fourteen million, two hundred thirty-one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 71 142 284 355 568 710 1420 2840 5011 10022 20044 25055 40088 50110 100220 200440 355781 711562 1423124 1778905 2846248 3557810 7115620 14231240