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16988960 = 255106181
BaseRepresentation
bin100000011001…
…1101100100000
31011222010110202
41000303230200
513322121320
61404044332
7264255332
oct100635440
934863422
1016988960
11965406a
1258336a8
13369aa51
142383452
151758b75
hex1033b20

16988960 has 24 divisors (see below), whose sum is σ = 40136796. Its totient is φ = 6795520.

The previous prime is 16988947. The next prime is 16988987. The reversal of 16988960 is 6988961.

It can be written as a sum of positive squares in 2 ways, for example, as 14714896 + 2274064 = 3836^2 + 1508^2 .

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, 52931 + ... + 53250.

Almost surely, 216988960 is an apocalyptic number.

16988960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16988960 is an abundant number, since it is smaller than the sum of its proper divisors (23147836).

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

16988960 is a wasteful number, since it uses less digits than its factorization.

16988960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106196 (or 106188 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 16988960 is about 4121.7666115393. The cubic root of 16988960 is about 257.0724863287.

Subtracting from 16988960 its reverse (6988961), we obtain a palindrome (9999999).

The spelling of 16988960 in words is "sixteen million, nine hundred eighty-eight thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 106181 212362 424724 530905 849448 1061810 1698896 2123620 3397792 4247240 8494480 16988960