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12444442004 = 224372351407
BaseRepresentation
bin10111001011011111…
…10001110110010100
31012010021102011011102
423211233301312110
5200441234121004
65414503325232
7620246004011
oct134557616624
935107364142
1012444442004
115306621515
1224b3750818
131234266767
14860a70708
154cc7b211e
hex2e5bf1d94

12444442004 has 12 divisors (see below), whose sum is σ = 22284233664. Its totient is φ = 6077518104.

The previous prime is 12444441979. The next prime is 12444442033. The reversal of 12444442004 is 40024444421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36175532 + ... + 36175875.

It is an arithmetic number, because the mean of its divisors is an integer number (1857019472).

Almost surely, 212444442004 is an apocalyptic number.

It is an amenable number.

12444442004 is a deficient number, since it is larger than the sum of its proper divisors (9839791660).

12444442004 is a wasteful number, since it uses less digits than its factorization.

12444442004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72351454 (or 72351452 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 12444442004 its reverse (40024444421), we get a palindrome (52468886425).

The spelling of 12444442004 in words is "twelve billion, four hundred forty-four million, four hundred forty-two thousand, four".

Divisors: 1 2 4 43 86 172 72351407 144702814 289405628 3111110501 6222221002 12444442004