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268849 = 7193199
BaseRepresentation
bin1000001101000110001
3111122210101
41001220301
532100344
65432401
72166550
oct1015061
9448711
10268849
11173a99
1210b701
13954a9
146dd97
15549d4
hex41a31

268849 has 8 divisors (see below), whose sum is σ = 310400. Its totient is φ = 228096.

The previous prime is 268843. The next prime is 268861. The reversal of 268849 is 948862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 268849 - 23 = 268841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268841) by changing a digit.

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, 1252 + ... + 1450.

It is an arithmetic number, because the mean of its divisors is an integer number (38800).

2268849 is an apocalyptic number.

It is an amenable number.

268849 is a deficient number, since it is larger than the sum of its proper divisors (41551).

268849 is a wasteful number, since it uses less digits than its factorization.

268849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399.

The product of its digits is 27648, while the sum is 37.

The square root of 268849 is about 518.5065091202. The cubic root of 268849 is about 64.5410671307.

The spelling of 268849 in words is "two hundred sixty-eight thousand, eight hundred forty-nine".

Divisors: 1 7 193 199 1351 1393 38407 268849