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16208668 = 227578881
BaseRepresentation
bin111101110101…
…001100011100
31010111111010001
4331311030130
513122134133
61335224044
7254525410
oct75651434
933444101
1016208668
1191708a3
125518024
133486838
14221cd40
15165287d
hexf7531c

16208668 has 12 divisors (see below), whose sum is σ = 32417392. Its totient is φ = 6946560.

The previous prime is 16208639. The next prime is 16208669. The reversal of 16208668 is 86680261.

16208668 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16208669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289413 + ... + 289468.

Almost surely, 216208668 is an apocalyptic number.

It is an amenable number.

16208668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16208668 is a wasteful number, since it uses less digits than its factorization.

16208668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578892 (or 578890 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 16208668 is about 4025.9990064579. Note that the first 3 decimals coincide. The cubic root of 16208668 is about 253.0749203980.

The spelling of 16208668 in words is "sixteen million, two hundred eight thousand, six hundred sixty-eight".

Divisors: 1 2 4 7 14 28 578881 1157762 2315524 4052167 8104334 16208668