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180008268 = 2231110912511
BaseRepresentation
bin10101011101010…
…11010101001100
3110112201100220220
422232223111030
5332040231033
625510111340
74314021306
oct1256532514
9415640826
10180008268
1192678970
125034b550
132b3a788b
1419c9a976
1510c0abb3
hexabab54c

180008268 has 48 divisors (see below), whose sum is σ = 462443520. Its totient is φ = 54043200.

The previous prime is 180008263. The next prime is 180008303. The reversal of 180008268 is 862800081.

180008268 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (180008263) 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, 8133 + ... + 20643.

It is an arithmetic number, because the mean of its divisors is an integer number (9634240).

Almost surely, 2180008268 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 180008268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231221760).

180008268 is an abundant number, since it is smaller than the sum of its proper divisors (282435252).

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

180008268 is a wasteful number, since it uses less digits than its factorization.

180008268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12638 (or 12636 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 180008268 is about 13416.7159916278. The cubic root of 180008268 is about 564.6302621806.

The spelling of 180008268 in words is "one hundred eighty million, eight thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 109 132 218 327 436 654 1199 1308 2398 3597 4796 7194 12511 14388 25022 37533 50044 75066 137621 150132 275242 412863 550484 825726 1363699 1651452 2727398 4091097 5454796 8182194 15000689 16364388 30001378 45002067 60002756 90004134 180008268