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290349 = 3232261
BaseRepresentation
bin1000110111000101101
3112202021200
41012320231
533242344
610120113
72316333
oct1067055
9482250
10290349
11189164
12120039
13a2207
1477b53
155b069
hex46e2d

290349 has 6 divisors (see below), whose sum is σ = 419406. Its totient is φ = 193560.

The previous prime is 290347. The next prime is 290351. The reversal of 290349 is 943092.

It is an interprime number because it is at equal distance from previous prime (290347) and next prime (290351).

It can be written as a sum of positive squares in only one way, i.e., 189225 + 101124 = 435^2 + 318^2 .

It is not a de Polignac number, because 290349 - 21 = 290347 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 290349.

It is not an unprimeable number, because it can be changed into a prime (290347) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16122 + ... + 16139.

It is an arithmetic number, because the mean of its divisors is an integer number (69901).

2290349 is an apocalyptic number.

It is an amenable number.

290349 is a deficient number, since it is larger than the sum of its proper divisors (129057).

290349 is a wasteful number, since it uses less digits than its factorization.

290349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32267 (or 32264 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 290349 is about 538.8404216463. The cubic root of 290349 is about 66.2176013413.

The spelling of 290349 in words is "two hundred ninety thousand, three hundred forty-nine".

Divisors: 1 3 9 32261 96783 290349