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423441231 = 3711987987
BaseRepresentation
bin11001001111010…
…011001101001111
31002111210001011120
4121033103031033
51331400104411
6110003452023
713331122353
oct3117231517
91074701146
10423441231
111a8026734
12b9987013
136995b155
1440347463
1527294106
hex193d334f

423441231 has 8 divisors (see below), whose sum is σ = 572540544. Its totient is φ = 278318040.

The previous prime is 423441229. The next prime is 423441233. The reversal of 423441231 is 132144324.

It is an interprime number because it is at equal distance from previous prime (423441229) and next prime (423441233).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 423441231 - 21 = 423441229 is a prime.

It is a super-2 number, since 2×4234412312 = 358604952221590722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423441233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 993781 + ... + 994206.

It is an arithmetic number, because the mean of its divisors is an integer number (71567568).

Almost surely, 2423441231 is an apocalyptic number.

423441231 is a deficient number, since it is larger than the sum of its proper divisors (149099313).

423441231 is a wasteful number, since it uses less digits than its factorization.

423441231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988061.

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

The square root of 423441231 is about 20577.6876980870. The cubic root of 423441231 is about 750.9269906679.

Adding to 423441231 its reverse (132144324), we get a palindrome (555585555).

The spelling of 423441231 in words is "four hundred twenty-three million, four hundred forty-one thousand, two hundred thirty-one".

Divisors: 1 3 71 213 1987987 5963961 141147077 423441231