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1230144234 = 2311791311801
BaseRepresentation
bin100100101010010…
…1000001011101010
310011201201210122120
41021110220023222
510004404103414
6322022132110
742325024224
oct11124501352
93151653576
101230144234
11581425630
122a3b81036
13167b19cc7
14b9539414
1572ee22a9
hex495282ea

1230144234 has 64 divisors (see below), whose sum is σ = 2740193280. Its totient is φ = 365040000.

The previous prime is 1230144193. The next prime is 1230144241. The reversal of 1230144234 is 4324410321.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 682134 + ... + 683934.

It is an arithmetic number, because the mean of its divisors is an integer number (42815520).

Almost surely, 21230144234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230144234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1370096640).

1230144234 is an abundant number, since it is smaller than the sum of its proper divisors (1510049046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230144234 is a wasteful number, since it uses less digits than its factorization.

1230144234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1230144234 is about 35073.4120666923. The cubic root of 1230144234 is about 1071.4831483412.

Adding to 1230144234 its reverse (4324410321), we get a palindrome (5554554555).

The spelling of 1230144234 in words is "one billion, two hundred thirty million, one hundred forty-four thousand, two hundred thirty-four".

Divisors: 1 2 3 6 11 22 33 66 79 131 158 237 262 393 474 786 869 1441 1738 1801 2607 2882 3602 4323 5214 5403 8646 10349 10806 19811 20698 31047 39622 59433 62094 113839 118866 142279 227678 235931 284558 341517 426837 471862 683034 707793 853674 1415586 1565069 2595241 3130138 4695207 5190482 7785723 9390414 15571446 18638549 37277098 55915647 111831294 205024039 410048078 615072117 1230144234