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16628960 = 255432417
BaseRepresentation
bin111111011011…
…110011100000
31011021211122102
4333123303200
513224111320
61352225532
7261225635
oct77336340
934254572
1016628960
119428647
12569b2a8
1335a2c2a
1422cc18c
1516d7175
hexfdbce0

16628960 has 48 divisors (see below), whose sum is σ = 40216176. Its totient is φ = 6494208.

The previous prime is 16628951. The next prime is 16628993. The reversal of 16628960 is 6982661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5672 + ... + 8088.

It is an arithmetic number, because the mean of its divisors is an integer number (837837).

Almost surely, 216628960 is an apocalyptic number.

16628960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16628960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20108088).

16628960 is an abundant number, since it is smaller than the sum of its proper divisors (23587216).

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

16628960 is a wasteful number, since it uses less digits than its factorization.

16628960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475 (or 2467 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 16628960 is about 4077.8621850180. The cubic root of 16628960 is about 255.2436988484.

The spelling of 16628960 in words is "sixteen million, six hundred twenty-eight thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 43 80 86 160 172 215 344 430 688 860 1376 1720 2417 3440 4834 6880 9668 12085 19336 24170 38672 48340 77344 96680 103931 193360 207862 386720 415724 519655 831448 1039310 1662896 2078620 3325792 4157240 8314480 16628960