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1024423423 = 4723216901
BaseRepresentation
bin111101000011110…
…111010111111111
32122101122002202021
4331003313113333
54044223022143
6245352541011
734246312132
oct7503672777
92571562667
101024423423
11486295531
122470b1767
1313430bb0a
149a0a8219
155ee07ced
hex3d0f75ff

1024423423 has 4 divisors (see below), whose sum is σ = 1024645048. Its totient is φ = 1024201800.

The previous prime is 1024423397. The next prime is 1024423441. The reversal of 1024423423 is 3243244201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3243244201 = 26312331727.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1024423423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1024427423) 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, 103728 + ... + 113173.

It is an arithmetic number, because the mean of its divisors is an integer number (256161262).

Almost surely, 21024423423 is an apocalyptic number.

1024423423 is a deficient number, since it is larger than the sum of its proper divisors (221625).

1024423423 is an equidigital number, since it uses as much as digits as its factorization.

1024423423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221624.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 1024423423 is about 32006.6153005906. The cubic root of 1024423423 is about 1008.0757477379.

Adding to 1024423423 its reverse (3243244201), we get a palindrome (4267667624).

The spelling of 1024423423 in words is "one billion, twenty-four million, four hundred twenty-three thousand, four hundred twenty-three".

Divisors: 1 4723 216901 1024423423