Search a number
-
+
431144430223 = 13191745524009
BaseRepresentation
bin1100100011000100011…
…01011110101010001111
31112012212012022100111111
412101202031132222033
524030440433231343
6530022013232451
743102106122063
oct6214215365217
91465765270444
10431144430223
11156935877831
126b685492727
133186cb3c290
1416c205d3aa3
15b335c32c9d
hex646235ea8f

431144430223 has 8 divisors (see below), whose sum is σ = 488746722800. Its totient is φ = 377033185728.

The previous prime is 431144430209. The next prime is 431144430229. The reversal of 431144430223 is 322034441134.

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

It is a cyclic number.

It is not a de Polignac number, because 431144430223 - 29 = 431144429711 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 (431144430229) 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, 872761758 + ... + 872762251.

It is an arithmetic number, because the mean of its divisors is an integer number (61093340350).

Almost surely, 2431144430223 is an apocalyptic number.

431144430223 is a deficient number, since it is larger than the sum of its proper divisors (57602292577).

431144430223 is a wasteful number, since it uses less digits than its factorization.

431144430223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745524041.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 431144430223 its reverse (322034441134), we get a palindrome (753178871357).

The spelling of 431144430223 in words is "four hundred thirty-one billion, one hundred forty-four million, four hundred thirty thousand, two hundred twenty-three".

Divisors: 1 13 19 247 1745524009 22691812117 33164956171 431144430223