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289275 = 35271929
BaseRepresentation
bin1000110100111111011
3112200210220
41012213323
533224100
610111123
72313240
oct1064773
9480726
10289275
11188378
1211b4a3
13a188c
14775c7
155aaa0
hex469fb

289275 has 48 divisors (see below), whose sum is σ = 595200. Its totient is φ = 120960.

The previous prime is 289273. The next prime is 289283. The reversal of 289275 is 572982.

It is not a de Polignac number, because 289275 - 21 = 289273 is a prime.

Its product of digits (10080) is a multiple of the sum of its prime divisors (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289273) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9961 + ... + 9989.

It is an arithmetic number, because the mean of its divisors is an integer number (12400).

2289275 is an apocalyptic number.

289275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

289275 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

289275 is a wasteful number, since it uses less digits than its factorization.

289275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68 (or 63 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 289275 is about 537.8429138698. The cubic root of 289275 is about 66.1358542341.

The spelling of 289275 in words is "two hundred eighty-nine thousand, two hundred seventy-five".

Divisors: 1 3 5 7 15 19 21 25 29 35 57 75 87 95 105 133 145 175 203 285 399 435 475 525 551 609 665 725 1015 1425 1653 1995 2175 2755 3045 3325 3857 5075 8265 9975 11571 13775 15225 19285 41325 57855 96425 289275