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253260 = 22335767
BaseRepresentation
bin111101110101001100
3110212102000
4331311030
531101020
65232300
72103240
oct756514
9425360
10253260
11163307
12102690
138b377
1468420
1550090
hex3dd4c

253260 has 96 divisors (see below), whose sum is σ = 913920. Its totient is φ = 57024.

The previous prime is 253247. The next prime is 253273. The reversal of 253260 is 62352.

It is an interprime number because it is at equal distance from previous prime (253247) and next prime (253273).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3747 + ... + 3813.

It is an arithmetic number, because the mean of its divisors is an integer number (9520).

2253260 is an apocalyptic number.

253260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

253260 is the 252-nd decagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456960).

253260 is an abundant number, since it is smaller than the sum of its proper divisors (660660).

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

253260 is a wasteful number, since it uses less digits than its factorization.

253260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 253260 is about 503.2494411323. The cubic root of 253260 is about 63.2686936678.

The spelling of 253260 in words is "two hundred fifty-three thousand, two hundred sixty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 54 60 63 67 70 84 90 105 108 126 134 135 140 180 189 201 210 252 268 270 315 335 378 402 420 469 540 603 630 670 756 804 938 945 1005 1206 1260 1340 1407 1809 1876 1890 2010 2345 2412 2814 3015 3618 3780 4020 4221 4690 5628 6030 7035 7236 8442 9045 9380 12060 12663 14070 16884 18090 21105 25326 28140 36180 42210 50652 63315 84420 126630 253260