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20223423 = 3211375521
BaseRepresentation
bin100110100100…
…1010110111111
31102001110022200
41031021112333
520134122143
62001242543
7333616263
oct115112677
942043280
1020223423
1110463180
126933453
13426102c
1429860a3
151b971d3
hex13495bf

20223423 has 24 divisors (see below), whose sum is σ = 32734416. Its totient is φ = 11923200.

The previous prime is 20223403. The next prime is 20223443. The reversal of 20223423 is 32432202.

Adding to 20223423 its reverse (32432202), we get a palindrome (52655625).

It can be divided in two parts, 2022 and 3423, that added together give a palindrome (5445).

20223423 is a `hidden beast` number, since 20 + 223 + 423 = 666.

It is an interprime number because it is at equal distance from previous prime (20223403) and next prime (20223443).

It is not a de Polignac number, because 20223423 - 28 = 20223167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20223396 and 20223405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223403) 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, 903 + ... + 6423.

It is an arithmetic number, because the mean of its divisors is an integer number (1363934).

Almost surely, 220223423 is an apocalyptic number.

20223423 is a deficient number, since it is larger than the sum of its proper divisors (12510993).

20223423 is a wasteful number, since it uses less digits than its factorization.

20223423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5575 (or 5572 counting only the distinct ones).

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

The square root of 20223423 is about 4497.0460304515. The cubic root of 20223423 is about 272.4487932286.

The spelling of 20223423 in words is "twenty million, two hundred twenty-three thousand, four hundred twenty-three".

Divisors: 1 3 9 11 33 37 99 111 333 407 1221 3663 5521 16563 49689 60731 182193 204277 546579 612831 1838493 2247047 6741141 20223423