Search a number
-
+
31233455044 = 2211883980309
BaseRepresentation
bin11101000101101010…
…001011001111000100
32222121201020220121021
4131011222023033010
51002431231030134
622203133200524
72153664662461
oct350552131704
988551226537
1031233455044
1112278520070
126078030144
132c39aa105c
1417241a6668
15c2c0720b4
hex745a8b3c4

31233455044 has 24 divisors (see below), whose sum is σ = 59634993600. Its totient is φ = 14195242080.

The previous prime is 31233455027. The next prime is 31233455047. The reversal of 31233455044 is 44055433213.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31233455047) 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, 348762 + ... + 429070.

It is an arithmetic number, because the mean of its divisors is an integer number (2484791400).

Almost surely, 231233455044 is an apocalyptic number.

It is an amenable number.

31233455044 is a deficient number, since it is larger than the sum of its proper divisors (28401538556).

31233455044 is a wasteful number, since it uses less digits than its factorization.

31233455044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89163 (or 89161 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 31233455044 its reverse (44055433213), we get a palindrome (75288888257).

The spelling of 31233455044 in words is "thirty-one billion, two hundred thirty-three million, four hundred fifty-five thousand, forty-four".

Divisors: 1 2 4 11 22 44 8839 17678 35356 80309 97229 160618 194458 321236 388916 883399 1766798 3533596 709851251 1419702502 2839405004 7808363761 15616727522 31233455044