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268260 = 223517263
BaseRepresentation
bin1000001011111100100
3111121222120
41001133210
532041020
65425540
72165046
oct1013744
9447876
10268260
11173603
1210b2b0
1395145
146da96
1554740
hex417e4

268260 has 48 divisors (see below), whose sum is σ = 798336. Its totient is φ = 67072.

The previous prime is 268253. The next prime is 268267. The reversal of 268260 is 62862.

It is an interprime number because it is at equal distance from previous prime (268253) and next prime (268267).

It is a self number, because there is not a number n which added to its sum of digits gives 268260.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268267) by changing a digit.

268260 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 889 + ... + 1151.

It is an arithmetic number, because the mean of its divisors is an integer number (16632).

2268260 is an apocalyptic number.

268260 is a gapful number since it is divisible by the number (20) 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 268260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399168).

268260 is an abundant number, since it is smaller than the sum of its proper divisors (530076).

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

268260 is a wasteful number, since it uses less digits than its factorization.

268260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 268260 is about 517.9382202541. The cubic root of 268260 is about 64.4939000301.

It can be divided in two parts, 268 and 260, that added together give a triangular number (528 = T32).

The spelling of 268260 in words is "two hundred sixty-eight thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 263 340 510 526 789 1020 1052 1315 1578 2630 3156 3945 4471 5260 7890 8942 13413 15780 17884 22355 26826 44710 53652 67065 89420 134130 268260