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268430 = 25171579
BaseRepresentation
bin1000001100010001110
3111122012212
41001202032
532042210
65430422
72165411
oct1014216
9448185
10268430
11173748
1210b412
1395246
146db78
1554805
hex4188e

268430 has 16 divisors (see below), whose sum is σ = 511920. Its totient is φ = 100992.

The previous prime is 268403. The next prime is 268439. The reversal of 268430 is 34862.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 268396 and 268405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268439) by changing a digit.

268430 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620 + ... + 959.

It is an arithmetic number, because the mean of its divisors is an integer number (31995).

2268430 is an apocalyptic number.

268430 is a deficient number, since it is larger than the sum of its proper divisors (243490).

268430 is a wasteful number, since it uses less digits than its factorization.

268430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 268430 is about 518.1023064994. The cubic root of 268430 is about 64.5075207063.

The spelling of 268430 in words is "two hundred sixty-eight thousand, four hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 1579 3158 7895 15790 26843 53686 134215 268430