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23210423 = 175973317
BaseRepresentation
bin101100010001…
…0100110110111
31121200012201022
41120202212313
521420213143
62145251355
7401166605
oct130424667
947605638
1023210423
1112113375
127933b5b
134a687a2
143122875
152087268
hex16229b7

23210423 has 16 divisors (see below), whose sum is σ = 25414560. Its totient is φ = 21113856.

The previous prime is 23210417. The next prime is 23210431. The reversal of 23210423 is 32401232.

It is a cyclic number.

It is not a de Polignac number, because 23210423 - 216 = 23144887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23210323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73061 + ... + 73377.

It is an arithmetic number, because the mean of its divisors is an integer number (1588410).

Almost surely, 223210423 is an apocalyptic number.

23210423 is a deficient number, since it is larger than the sum of its proper divisors (2204137).

23210423 is a wasteful number, since it uses less digits than its factorization.

23210423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 23210423 is about 4817.7196888154. The cubic root of 23210423 is about 285.2513346652.

Adding to 23210423 its reverse (32401232), we get a palindrome (55611655).

The spelling of 23210423 in words is "twenty-three million, two hundred ten thousand, four hundred twenty-three".

Divisors: 1 17 59 73 317 1003 1241 4307 5389 18703 23141 73219 317951 393397 1365319 23210423