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23404469 = 112127679
BaseRepresentation
bin101100101000…
…1111110110101
31122001001220012
41121101332311
521442420334
62153350005
7402635414
oct131217665
948031805
1023404469
1112236140
127a08305
134b05bca
14317347b
1520c49ce
hex1651fb5

23404469 has 4 divisors (see below), whose sum is σ = 25532160. Its totient is φ = 21276780.

The previous prime is 23404463. The next prime is 23404471. The reversal of 23404469 is 96440432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23404469 - 24 = 23404453 is a prime.

It is a super-2 number, since 2×234044692 = 1095538338343922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23404463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1063829 + ... + 1063850.

It is an arithmetic number, because the mean of its divisors is an integer number (6383040).

Almost surely, 223404469 is an apocalyptic number.

It is an amenable number.

23404469 is a deficient number, since it is larger than the sum of its proper divisors (2127691).

23404469 is a wasteful number, since it uses less digits than its factorization.

23404469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127690.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 23404469 is about 4837.8165529503. The cubic root of 23404469 is about 286.0440581220.

The spelling of 23404469 in words is "twenty-three million, four hundred four thousand, four hundred sixty-nine".

Divisors: 1 11 2127679 23404469