Search a number
-
+
80231433011 = 497316133407
BaseRepresentation
bin100101010111000101…
…0101000001100110011
321200002110121002101222
41022232022220030303
52303303221324021
6100505142015255
75540131633262
oct1125612501463
9250073532358
1080231433011
1131031609134
121367141752b
137748076422
143c517c05d9
1521489866ab
hex12ae2a8333

80231433011 has 4 divisors (see below), whose sum is σ = 80247571392. Its totient is φ = 80215294632.

The previous prime is 80231432947. The next prime is 80231433013. The reversal of 80231433011 is 11033413208.

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 80231433011 - 26 = 80231432947 is a prime.

It is a super-2 number, since 2×802314330112 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80231433013) 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 3 ways as a sum of consecutive naturals, for example, 8061731 + ... + 8071676.

It is an arithmetic number, because the mean of its divisors is an integer number (20061892848).

Almost surely, 280231433011 is an apocalyptic number.

80231433011 is a deficient number, since it is larger than the sum of its proper divisors (16138381).

80231433011 is a wasteful number, since it uses less digits than its factorization.

80231433011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16138380.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 80231433011 its reverse (11033413208), we get a palindrome (91264846219).

The spelling of 80231433011 in words is "eighty billion, two hundred thirty-one million, four hundred thirty-three thousand, eleven".

Divisors: 1 4973 16133407 80231433011