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23000290 = 252300029
BaseRepresentation
bin101011110111…
…1010011100010
31121021112110121
41113233103202
521342002130
62140550454
7366333145
oct127572342
947245417
1023000290
1111a8a505
12785242a
1349c3c51
1430aa05c
152044d7a
hex15ef4e2

23000290 has 8 divisors (see below), whose sum is σ = 41400540. Its totient is φ = 9200112.

The previous prime is 23000287. The next prime is 23000291. The reversal of 23000290 is 9200032.

It can be written as a sum of positive squares in 2 ways, for example, as 22877089 + 123201 = 4783^2 + 351^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (23000291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1150005 + ... + 1150024.

Almost surely, 223000290 is an apocalyptic number.

23000290 is a deficient number, since it is larger than the sum of its proper divisors (18400250).

23000290 is a wasteful number, since it uses less digits than its factorization.

23000290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300036.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 23000290 is about 4795.8617578075. The cubic root of 23000290 is about 284.3878932286.

The spelling of 23000290 in words is "twenty-three million, two hundred ninety", and thus it is an aban number.

Divisors: 1 2 5 10 2300029 4600058 11500145 23000290