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231414423 = 377138141
BaseRepresentation
bin11011100101100…
…01101010010111
3121010110001220120
431302301222113
5433220230143
634544003023
75506663422
oct1562615227
9533401816
10231414423
1110969a099
1265600473
1338c36016
1422a3c9b9
15154b2383
hexdcb1a97

231414423 has 4 divisors (see below), whose sum is σ = 308552568. Its totient is φ = 154276280.

The previous prime is 231414413. The next prime is 231414437. The reversal of 231414423 is 324414132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231414423 - 221 = 229317271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231414393 and 231414402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231414413) 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, 38569068 + ... + 38569073.

It is an arithmetic number, because the mean of its divisors is an integer number (77138142).

Almost surely, 2231414423 is an apocalyptic number.

231414423 is a deficient number, since it is larger than the sum of its proper divisors (77138145).

231414423 is an equidigital number, since it uses as much as digits as its factorization.

231414423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77138144.

The product of its digits is 2304, while the sum is 24.

The square root of 231414423 is about 15212.3115600490. The cubic root of 231414423 is about 613.9459531132.

Adding to 231414423 its reverse (324414132), we get a palindrome (555828555).

The spelling of 231414423 in words is "two hundred thirty-one million, four hundred fourteen thousand, four hundred twenty-three".

Divisors: 1 3 77138141 231414423