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9000290 = 251369233
BaseRepresentation
bin100010010101…
…010101100010
3121221021002002
4202111111202
54301002130
6520524002
7136333625
oct42252542
917837062
109000290
115098062
123020602
131b31820
1412a3dbc
15bcbb45
hex895562

9000290 has 16 divisors (see below), whose sum is σ = 17446968. Its totient is φ = 3323136.

The previous prime is 9000289. The next prime is 9000317. The reversal of 9000290 is 920009.

9000290 is nontrivially palindromic in base 4.

It can be written as a sum of positive squares in 4 ways, for example, as 8231161 + 769129 = 2869^2 + 877^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34487 + ... + 34746.

Almost surely, 29000290 is an apocalyptic number.

9000290 is a deficient number, since it is larger than the sum of its proper divisors (8446678).

9000290 is a wasteful number, since it uses less digits than its factorization.

9000290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69253.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 9000290 is about 3000.0483329440. The cubic root of 9000290 is about 208.0106164453.

Adding to 9000290 its reverse (920009), we get a palindrome (9920299).

The spelling of 9000290 in words is "nine million, two hundred ninety", and thus it is an aban number.

Divisors: 1 2 5 10 13 26 65 130 69233 138466 346165 692330 900029 1800058 4500145 9000290