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423430423 = 13212915299
BaseRepresentation
bin11001001111010…
…000100100010111
31002111202111100021
4121033100210113
51331344233143
6110003330011
713331046013
oct3117204427
91074674307
10423430423
111a80195a9
12b9980907
1369956260
1440343543
1527290ced
hex193d0917

423430423 has 8 divisors (see below), whose sum is σ = 456246000. Its totient is φ = 390649728.

The previous prime is 423430387. The next prime is 423430459. The reversal of 423430423 is 324034324.

It is an interprime number because it is at equal distance from previous prime (423430387) and next prime (423430459).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-423430423 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423436423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20028 + ... + 35326.

It is an arithmetic number, because the mean of its divisors is an integer number (57030750).

Almost surely, 2423430423 is an apocalyptic number.

423430423 is a deficient number, since it is larger than the sum of its proper divisors (32815577).

423430423 is a wasteful number, since it uses less digits than its factorization.

423430423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17441.

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 423430423 is about 20577.4250818707. The cubic root of 423430423 is about 750.9206016759.

Adding to 423430423 its reverse (324034324), we get a palindrome (747464747).

The spelling of 423430423 in words is "four hundred twenty-three million, four hundred thirty thousand, four hundred twenty-three".

Divisors: 1 13 2129 15299 27677 198887 32571571 423430423