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16768284 = 22313472287
BaseRepresentation
bin111111111101…
…110100011100
31011112220202120
4333331310130
513243041114
61355222540
7262346061
oct77756434
934486676
1016768284
119513295
125747a50
133621480
142326c68
1517135a9
hexffdd1c

16768284 has 48 divisors (see below), whose sum is σ = 43051008. Its totient is φ = 5047488.

The previous prime is 16768277. The next prime is 16768309. The reversal of 16768284 is 48286761.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6189 + ... + 8475.

It is an arithmetic number, because the mean of its divisors is an integer number (896896).

Almost surely, 216768284 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 16768284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21525504).

16768284 is an abundant number, since it is smaller than the sum of its proper divisors (26282724).

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

16768284 is a wasteful number, since it uses less digits than its factorization.

16768284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354 (or 2352 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 16768284 is about 4094.9095228100. The cubic root of 16768284 is about 255.9545614341.

The spelling of 16768284 in words is "sixteen million, seven hundred sixty-eight thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 13 26 39 47 52 78 94 141 156 188 282 564 611 1222 1833 2287 2444 3666 4574 6861 7332 9148 13722 27444 29731 59462 89193 107489 118924 178386 214978 322467 356772 429956 644934 1289868 1397357 2794714 4192071 5589428 8384142 16768284