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12438384404 = 228813529621
BaseRepresentation
bin10111001010110001…
…01010111100010100
31012002212000101200212
423211120222330110
5200433211300104
65414125424552
7620143344245
oct134530527424
935085011625
1012438384404
115303164336
1224b170b158
131232c25494
1485dd34ccc
154cbeb736e
hex2e562af14

12438384404 has 12 divisors (see below), whose sum is σ = 21791886228. Its totient is φ = 6212131200.

The previous prime is 12438384397. The next prime is 12438384433. The reversal of 12438384404 is 40448383421.

12438384404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4969968004 + 7468416400 = 70498^2 + 86420^2 .

It is a congruent number.

It is an unprimeable number.

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, 1761287 + ... + 1768334.

It is an arithmetic number, because the mean of its divisors is an integer number (1815990519).

Almost surely, 212438384404 is an apocalyptic number.

It is an amenable number.

12438384404 is a deficient number, since it is larger than the sum of its proper divisors (9353501824).

12438384404 is a wasteful number, since it uses less digits than its factorization.

12438384404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3530506 (or 3530504 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 41.

The spelling of 12438384404 in words is "twelve billion, four hundred thirty-eight million, three hundred eighty-four thousand, four hundred four".

Divisors: 1 2 4 881 1762 3524 3529621 7059242 14118484 3109596101 6219192202 12438384404