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268830 = 232529103
BaseRepresentation
bin1000001101000011110
3111122202200
41001220132
532100310
65432330
72166522
oct1015036
9448680
10268830
11173a81
1210b6a6
1395493
146dd82
15549c0
hex41a1e

268830 has 48 divisors (see below), whose sum is σ = 730080. Its totient is φ = 68544.

The previous prime is 268823. The next prime is 268841. The reversal of 268830 is 38862.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 268794 and 268803.

It is a congruent number.

It is an unprimeable number.

268830 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 23 ways as a sum of consecutive naturals, for example, 2559 + ... + 2661.

It is an arithmetic number, because the mean of its divisors is an integer number (15210).

2268830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365040).

268830 is an abundant number, since it is smaller than the sum of its proper divisors (461250).

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

268830 is a wasteful number, since it uses less digits than its factorization.

268830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 142 counting only the distinct ones).

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

The square root of 268830 is about 518.4881869435. The cubic root of 268830 is about 64.5395466872.

The spelling of 268830 in words is "two hundred sixty-eight thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 29 30 45 58 87 90 103 145 174 206 261 290 309 435 515 522 618 870 927 1030 1305 1545 1854 2610 2987 3090 4635 5974 8961 9270 14935 17922 26883 29870 44805 53766 89610 134415 268830