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16240068 = 22331343269
BaseRepresentation
bin111101111100…
…110111000100
31010120002012000
4331330313010
513124140233
61340025300
7255016065
oct75746704
933502160
1016240068
119192449
125532230
133497c10
14222a56c
15165bd13
hexf7cdc4

16240068 has 96 divisors (see below), whose sum is σ = 46569600. Its totient is φ = 4862592.

The previous prime is 16240061. The next prime is 16240069. The reversal of 16240068 is 86004261.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (16240061) 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, 60238 + ... + 60506.

It is an arithmetic number, because the mean of its divisors is an integer number (485100).

Almost surely, 216240068 is an apocalyptic number.

16240068 is a gapful number since it is divisible by the number (18) 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 16240068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23284800).

16240068 is an abundant number, since it is smaller than the sum of its proper divisors (30329532).

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

16240068 is a wasteful number, since it uses less digits than its factorization.

16240068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 16240068 is about 4029.8967728715. The cubic root of 16240068 is about 253.2382368525.

The spelling of 16240068 in words is "sixteen million, two hundred forty thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 36 39 43 52 54 78 86 108 117 129 156 172 234 258 269 351 387 468 516 538 559 702 774 807 1076 1118 1161 1404 1548 1614 1677 2236 2322 2421 3228 3354 3497 4644 4842 5031 6708 6994 7263 9684 10062 10491 11567 13988 14526 15093 20124 20982 23134 29052 30186 31473 34701 41964 46268 60372 62946 69402 94419 104103 125892 138804 150371 188838 208206 300742 312309 377676 416412 451113 601484 624618 902226 1249236 1353339 1804452 2706678 4060017 5413356 8120034 16240068