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14227990 = 257439463
BaseRepresentation
bin110110010001…
…101000010110
3222202212010121
4312101220112
512120243430
61224542154
7231636010
oct66215026
928685117
1014227990
118038777
12492195a
132c4213a
141c651b0
1513b0a7a
hexd91a16

14227990 has 32 divisors (see below), whose sum is σ = 29399040. Its totient is φ = 4856544.

The previous prime is 14227973. The next prime is 14227991. The reversal of 14227990 is 9972241.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14227991) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 30499 + ... + 30961.

It is an arithmetic number, because the mean of its divisors is an integer number (918720).

Almost surely, 214227990 is an apocalyptic number.

14227990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14227990 is an abundant number, since it is smaller than the sum of its proper divisors (15171050).

14227990 is a wasteful number, since it uses less digits than its factorization.

14227990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 14227990 is about 3772.0007953340. Note that the first 3 decimals coincide. The cubic root of 14227990 is about 242.3154936212.

The spelling of 14227990 in words is "fourteen million, two hundred twenty-seven thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 439 463 878 926 2195 2315 3073 3241 4390 4630 6146 6482 15365 16205 30730 32410 203257 406514 1016285 1422799 2032570 2845598 7113995 14227990