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20232423 = 35139599
BaseRepresentation
bin100110100101…
…1100011100111
31102001220200000
41031023203213
520134414143
62001352343
7333654441
oct115134347
942056600
1020232423
1110469a12
1269386b3
134265163
142989491
151b99bd3
hex134b8e7

20232423 has 24 divisors (see below), whose sum is σ = 30576000. Its totient is φ = 13368888.

The previous prime is 20232413. The next prime is 20232427. The reversal of 20232423 is 32423202.

It is not a de Polignac number, because 20232423 - 25 = 20232391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20232396 and 20232405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20232427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33478 + ... + 34076.

It is an arithmetic number, because the mean of its divisors is an integer number (1274000).

Almost surely, 220232423 is an apocalyptic number.

20232423 is a deficient number, since it is larger than the sum of its proper divisors (10343577).

20232423 is an equidigital number, since it uses as much as digits as its factorization.

20232423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753 (or 741 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 20232423 is about 4498.0465760150. The cubic root of 20232423 is about 272.4892030624.

Adding to 20232423 its reverse (32423202), we get a palindrome (52655625).

The spelling of 20232423 in words is "twenty million, two hundred thirty-two thousand, four hundred twenty-three".

Divisors: 1 3 9 27 81 139 243 417 599 1251 1797 3753 5391 11259 16173 33777 48519 83261 145557 249783 749349 2248047 6744141 20232423