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12003430524 = 2231804355439
BaseRepresentation
bin10110010110111010…
…11101000001111100
31010222112120110010220
423023131131001330
5144040334234044
65303031101340
7603312322161
oct131335350174
933875513126
1012003430524
1150aa695018
1223abb11850
131193a96117
1481c272068
154a3bec019
hex2cb75d07c

12003430524 has 24 divisors (see below), whose sum is σ = 28010062080. Its totient is φ = 4000849584.

The previous prime is 12003430511. The next prime is 12003430531. The reversal of 12003430524 is 42503430021.

It is a junction number, because it is equal to n+sod(n) for n = 12003430494 and 12003430503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188797 + ... + 244235.

It is an arithmetic number, because the mean of its divisors is an integer number (1167085920).

Almost surely, 212003430524 is an apocalyptic number.

It is an amenable number.

12003430524 is an abundant number, since it is smaller than the sum of its proper divisors (16006631556).

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

12003430524 is a wasteful number, since it uses less digits than its factorization.

12003430524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73489 (or 73487 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 12003430524 its reverse (42503430021), we get a palindrome (54506860545).

The spelling of 12003430524 in words is "twelve billion, three million, four hundred thirty thousand, five hundred twenty-four".

Divisors: 1 2 3 4 6 12 18043 36086 54129 55439 72172 108258 110878 166317 216516 221756 332634 665268 1000285877 2000571754 3000857631 4001143508 6001715262 12003430524