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BaseRepresentation
bin111001011101111
31111100202
413023233
51420143
6344115
7151532
oct71357
944322
1029423
1120119
121503b
1310514
14aa19
158ab8
hex72ef

29423 has 2 divisors, whose sum is σ = 29424. Its totient is φ = 29422.

The previous prime is 29411. The next prime is 29429. The reversal of 29423 is 32492.

Subtracting from 29423 its sum of digits (20), we obtain a triangular number (29403 = T242).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29423 - 28 = 29167 is a prime.

It is equal to p3197 and since 29423 and 3197 have the same sum of digits, it is a Honaker prime.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 29395 and 29404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14711 + 14712.

It is an arithmetic number, because the mean of its divisors is an integer number (14712).

229423 is an apocalyptic number.

29423 is a deficient number, since it is larger than the sum of its proper divisors (1).

29423 is an equidigital number, since it uses as much as digits as its factorization.

29423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 20.

The square root of 29423 is about 171.5313382446. The cubic root of 29423 is about 30.8718259616.

The spelling of 29423 in words is "twenty-nine thousand, four hundred twenty-three".