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290103 = 31159149
BaseRepresentation
bin1000110110100110111
3112201221120
41012310313
533240403
610115023
72315532
oct1066467
9481846
10290103
11188a60
1211ba73
13a2078
1477a19
155ae53
hex46d37

290103 has 16 divisors (see below), whose sum is σ = 432000. Its totient is φ = 171680.

The previous prime is 290083. The next prime is 290107. The reversal of 290103 is 301092.

It is a cyclic number.

It is not a de Polignac number, because 290103 - 26 = 290039 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 290103.

It is not an unprimeable number, because it can be changed into a prime (290107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1873 + ... + 2021.

It is an arithmetic number, because the mean of its divisors is an integer number (27000).

2290103 is an apocalyptic number.

290103 is a deficient number, since it is larger than the sum of its proper divisors (141897).

290103 is a wasteful number, since it uses less digits than its factorization.

290103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 290103 is about 538.6121053226. The cubic root of 290103 is about 66.1988949655.

Adding to 290103 its reverse (301092), we get a palindrome (591195).

It can be divided in two parts, 290 and 103, that added together give a palindrome (393).

The spelling of 290103 in words is "two hundred ninety thousand, one hundred three".

Divisors: 1 3 11 33 59 149 177 447 649 1639 1947 4917 8791 26373 96701 290103