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16288988 = 2217323539
BaseRepresentation
bin111110001000…
…110011011100
31010122120021212
4332020303130
513132221423
61341043552
7255311522
oct76106334
933576255
1016288988
119216181
1255565b8
1334b4271
142240312
15166b578
hexf88cdc

16288988 has 12 divisors (see below), whose sum is σ = 28671720. Its totient is φ = 8097072.

The previous prime is 16288963. The next prime is 16289003. The reversal of 16288988 is 88988261.

It is a super-2 number, since 2×162889882 = 530662260128288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11078 + ... + 12461.

It is an arithmetic number, because the mean of its divisors is an integer number (2389310).

Almost surely, 216288988 is an apocalyptic number.

It is an amenable number.

16288988 is a deficient number, since it is larger than the sum of its proper divisors (12382732).

16288988 is a wasteful number, since it uses less digits than its factorization.

16288988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23716 (or 23714 counting only the distinct ones).

The product of its digits is 442368, while the sum is 50.

The square root of 16288988 is about 4035.9618432289. The cubic root of 16288988 is about 253.4922586974.

The spelling of 16288988 in words is "sixteen million, two hundred eighty-eight thousand, nine hundred eighty-eight".

Divisors: 1 2 4 173 346 692 23539 47078 94156 4072247 8144494 16288988