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290028873 = 32310141617
BaseRepresentation
bin10001010010010…
…111110101001001
3202012201222211010
4101102113311021
51043221410443
644440154133
710121130141
oct2122276511
9665658733
10290028873
11139793a92
1281168949
1348119424
142a739921
151a6de733
hex11497d49

290028873 has 16 divisors (see below), whose sum is σ = 407523456. Its totient is φ = 183110400.

The previous prime is 290028821. The next prime is 290028889. The reversal of 290028873 is 378820092.

It is not a de Polignac number, because 290028873 - 210 = 290027849 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (290028803) 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, 13840 + ... + 27777.

It is an arithmetic number, because the mean of its divisors is an integer number (25470216).

Almost surely, 2290028873 is an apocalyptic number.

290028873 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

290028873 is a deficient number, since it is larger than the sum of its proper divisors (117494583).

290028873 is a wasteful number, since it uses less digits than its factorization.

290028873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41744.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 290028873 is about 17030.2340852967. The cubic root of 290028873 is about 661.9325611364.

The spelling of 290028873 in words is "two hundred ninety million, twenty-eight thousand, eight hundred seventy-three".

Divisors: 1 3 23 69 101 303 2323 6969 41617 124851 957191 2871573 4203317 12609951 96676291 290028873