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16768668 = 2237892243
BaseRepresentation
bin111111111101…
…111010011100
31011112221021210
4333331322130
513243044133
61355224420
7262350150
oct77757234
934487253
1016768668
119513604
125748110
1336216b7
142327060
151713763
hexffde9c

16768668 has 48 divisors (see below), whose sum is σ = 45239040. Its totient is φ = 4735104.

The previous prime is 16768657. The next prime is 16768673. The reversal of 16768668 is 86686761.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6355 + ... + 8597.

It is an arithmetic number, because the mean of its divisors is an integer number (942480).

Almost surely, 216768668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16768668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22619520).

16768668 is an abundant number, since it is smaller than the sum of its proper divisors (28470372).

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

16768668 is a wasteful number, since it uses less digits than its factorization.

16768668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346 (or 2344 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 16768668 is about 4094.9564100244. The cubic root of 16768668 is about 255.9565152377.

The spelling of 16768668 in words is "sixteen million, seven hundred sixty-eight thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 89 178 267 356 534 623 1068 1246 1869 2243 2492 3738 4486 6729 7476 8972 13458 15701 26916 31402 47103 62804 94206 188412 199627 399254 598881 798508 1197762 1397389 2395524 2794778 4192167 5589556 8384334 16768668