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14981216 = 251727539
BaseRepresentation
bin111001001001…
…100001100000
31001012010100212
4321021201200
512313344331
61253033252
7241224005
oct71114140
931163325
1014981216
118502678
125025828
133146c33
141dbd8ac
1514add2b
hexe49860

14981216 has 24 divisors (see below), whose sum is σ = 31230360. Its totient is φ = 7049728.

The previous prime is 14981207. The next prime is 14981227. The reversal of 14981216 is 61218941.

It is a super-3 number, since 3×149812163 (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13226 + ... + 14313.

It is an arithmetic number, because the mean of its divisors is an integer number (1301265).

Almost surely, 214981216 is an apocalyptic number.

14981216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

14981216 is an abundant number, since it is smaller than the sum of its proper divisors (16249144).

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

14981216 is a wasteful number, since it uses less digits than its factorization.

14981216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27566 (or 27558 counting only the distinct ones).

The product of its digits is 3456, while the sum is 32.

The square root of 14981216 is about 3870.5575825713. The cubic root of 14981216 is about 246.5182192591.

The spelling of 14981216 in words is "fourteen million, nine hundred eighty-one thousand, two hundred sixteen".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 544 27539 55078 110156 220312 440624 468163 881248 936326 1872652 3745304 7490608 14981216