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80568168 = 233171811091
BaseRepresentation
bin1001100110101…
…01111101101000
312121121021202020
410303111331220
5131111140133
611554504440
71665550422
oct463257550
9177537666
1080568168
114152a06a
1222b95120
13138cbb95
14a9b3812
1571170b3
hex4cd5f68

80568168 has 64 divisors (see below), whose sum is σ = 214643520. Its totient is φ = 25113600.

The previous prime is 80568167. The next prime is 80568179. The reversal of 80568168 is 86186508.

It is not an unprimeable number, because it can be changed into a prime (80568167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73303 + ... + 74393.

It is an arithmetic number, because the mean of its divisors is an integer number (3353805).

Almost surely, 280568168 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 80568168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107321760).

80568168 is an abundant number, since it is smaller than the sum of its proper divisors (134075352).

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

80568168 is a wasteful number, since it uses less digits than its factorization.

80568168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298 (or 1294 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 80568168 is about 8975.9772726985. The cubic root of 80568168 is about 431.9045999903.

The spelling of 80568168 in words is "eighty million, five hundred sixty-eight thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 181 204 362 408 543 724 1086 1091 1448 2172 2182 3077 3273 4344 4364 6154 6546 8728 9231 12308 13092 18462 18547 24616 26184 36924 37094 55641 73848 74188 111282 148376 197471 222564 394942 445128 592413 789884 1184826 1579768 2369652 3357007 4739304 6714014 10071021 13428028 20142042 26856056 40284084 80568168