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290927 = 71323139
BaseRepresentation
bin1000111000001101111
3112210002002
41013001233
533302202
610122515
72321120
oct1070157
9483062
10290927
1118963a
1212043b
13a2560
1478047
155b302
hex4706f

290927 has 16 divisors (see below), whose sum is σ = 376320. Its totient is φ = 218592.

The previous prime is 290923. The next prime is 290959. The reversal of 290927 is 729092.

It is a happy number.

It is not a de Polignac number, because 290927 - 22 = 290923 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 290927.

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 290927.

It is not an unprimeable number, because it can be changed into a prime (290923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2024 + ... + 2162.

It is an arithmetic number, because the mean of its divisors is an integer number (23520).

2290927 is an apocalyptic number.

290927 is a deficient number, since it is larger than the sum of its proper divisors (85393).

290927 is a wasteful number, since it uses less digits than its factorization.

290927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 290927 is about 539.3764918867. The cubic root of 290927 is about 66.2615121800.

The spelling of 290927 in words is "two hundred ninety thousand, nine hundred twenty-seven".

Divisors: 1 7 13 23 91 139 161 299 973 1807 2093 3197 12649 22379 41561 290927