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23000423 = 41395557
BaseRepresentation
bin101011110111…
…1010101100111
31121021112122112
41113233111213
521342003143
62140551235
7366333425
oct127572547
947245575
1023000423
1111a8a616
12785251b
1349c4024
1430aa115
152044e18
hex15ef567

23000423 has 4 divisors (see below), whose sum is σ = 23010120. Its totient is φ = 22990728.

The previous prime is 23000413. The next prime is 23000429. The reversal of 23000423 is 32400032.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23000423 - 210 = 22999399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23000398 and 23000407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23000429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1361 + ... + 6917.

It is an arithmetic number, because the mean of its divisors is an integer number (5752530).

Almost surely, 223000423 is an apocalyptic number.

23000423 is a deficient number, since it is larger than the sum of its proper divisors (9697).

23000423 is an equidigital number, since it uses as much as digits as its factorization.

23000423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9696.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 23000423 is about 4795.8756239085. The cubic root of 23000423 is about 284.3884413886.

Adding to 23000423 its reverse (32400032), we get a palindrome (55400455).

The spelling of 23000423 in words is "twenty-three million, four hundred twenty-three", and thus it is an aban number.

Divisors: 1 4139 5557 23000423