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16168680 = 23335111361
BaseRepresentation
bin111101101011…
…011011101000
31010102110021000
4331223123220
513114344210
61334315000
7254301003
oct75533350
933373230
1016168680
119143850
1254b8a60
133471588
14220c53a
151645ac0
hexf6b6e8

16168680 has 128 divisors (see below), whose sum is σ = 58838400. Its totient is φ = 3916800.

The previous prime is 16168661. The next prime is 16168681. The reversal of 16168680 is 8686161.

It is a super-2 number, since 2×161686802 = 522852425884800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (16168681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11200 + ... + 12560.

It is an arithmetic number, because the mean of its divisors is an integer number (459675).

Almost surely, 216168680 is an apocalyptic number.

16168680 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 16168680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29419200).

16168680 is an abundant number, since it is smaller than the sum of its proper divisors (42669720).

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

16168680 is a wasteful number, since it uses less digits than its factorization.

16168680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392 (or 1382 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 16168680 is about 4021.0297188656. The cubic root of 16168680 is about 252.8666307434.

It can be divided in two parts, 1616 and 8680, that added together give a triangular number (10296 = T143).

The spelling of 16168680 in words is "sixteen million, one hundred sixty-eight thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 27 30 33 36 40 44 45 54 55 60 66 72 88 90 99 108 110 120 132 135 165 180 198 216 220 264 270 297 330 360 396 440 495 540 594 660 792 990 1080 1188 1320 1361 1485 1980 2376 2722 2970 3960 4083 5444 5940 6805 8166 10888 11880 12249 13610 14971 16332 20415 24498 27220 29942 32664 36747 40830 44913 48996 54440 59884 61245 73494 74855 81660 89826 97992 119768 122490 134739 146988 149710 163320 179652 183735 224565 244980 269478 293976 299420 359304 367470 404217 449130 489960 538956 598840 673695 734940 808434 898260 1077912 1347390 1469880 1616868 1796520 2021085 2694780 3233736 4042170 5389560 8084340 16168680