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290054 = 21719449
BaseRepresentation
bin1000110110100000110
3112201212202
41012310012
533240204
610114502
72315432
oct1066406
9481782
10290054
11188a16
1211ba32
13a203b
14779c2
155ae1e
hex46d06

290054 has 16 divisors (see below), whose sum is σ = 486000. Its totient is φ = 129024.

The previous prime is 290047. The next prime is 290057. The reversal of 290054 is 450092.

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 290054.

It is not an unprimeable number, because it can be changed into a prime (290057) by changing a digit.

290054 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422 + ... + 870.

It is an arithmetic number, because the mean of its divisors is an integer number (30375).

2290054 is an apocalyptic number.

290054 is a deficient number, since it is larger than the sum of its proper divisors (195946).

290054 is a wasteful number, since it uses less digits than its factorization.

290054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 290054 is about 538.5666161210. The cubic root of 290054 is about 66.1951676359.

The spelling of 290054 in words is "two hundred ninety thousand, fifty-four".

Divisors: 1 2 17 19 34 38 323 449 646 898 7633 8531 15266 17062 145027 290054