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14218490 = 25111361163
BaseRepresentation
bin110110001111…
…010011111010
3222202101002202
4312033103322
512114442430
61224430202
7231566216
oct66172372
928671082
1014218490
118031620
124918362
132c3aa10
141c61946
1513acd45
hexd8f4fa

14218490 has 64 divisors (see below), whose sum is σ = 30748032. Its totient is φ = 4665600.

The previous prime is 14218453. The next prime is 14218493. The reversal of 14218490 is 9481241.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (14218493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87149 + ... + 87311.

It is an arithmetic number, because the mean of its divisors is an integer number (480438).

Almost surely, 214218490 is an apocalyptic number.

14218490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14218490 is an abundant number, since it is smaller than the sum of its proper divisors (16529542).

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

14218490 is a wasteful number, since it uses less digits than its factorization.

14218490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 14218490 is about 3770.7413064277. The cubic root of 14218490 is about 242.2615504260.

The spelling of 14218490 in words is "fourteen million, two hundred eighteen thousand, four hundred ninety".

Divisors: 1 2 5 10 11 13 22 26 55 61 65 110 122 130 143 163 286 305 326 610 671 715 793 815 1342 1430 1586 1630 1793 2119 3355 3586 3965 4238 6710 7930 8723 8965 9943 10595 17446 17930 19886 21190 23309 43615 46618 49715 87230 99430 109373 116545 129259 218746 233090 258518 546865 646295 1093730 1292590 1421849 2843698 7109245 14218490