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268061 = 1811481
BaseRepresentation
bin1000001011100011101
3111121201012
41001130131
532034221
65425005
72164343
oct1013435
9447635
10268061
11173442
1210b165
1395021
146d993
155465b
hex4171d

268061 has 4 divisors (see below), whose sum is σ = 269724. Its totient is φ = 266400.

The previous prime is 268049. The next prime is 268063. The reversal of 268061 is 160862.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42436 + 225625 = 206^2 + 475^2 .

It is a cyclic number.

It is not a de Polignac number, because 268061 - 210 = 267037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560 + ... + 921.

It is an arithmetic number, because the mean of its divisors is an integer number (67431).

2268061 is an apocalyptic number.

It is an amenable number.

268061 is a deficient number, since it is larger than the sum of its proper divisors (1663).

268061 is a wasteful number, since it uses less digits than its factorization.

268061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 268061 is about 517.7460767596. The cubic root of 268061 is about 64.4779485141.

The spelling of 268061 in words is "two hundred sixty-eight thousand, sixty-one".

Divisors: 1 181 1481 268061