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13031242123344 = 243345497857947
BaseRepresentation
bin1011110110100001001010…
…0011101100100001010000
31201010202220200001211112220
42331220102203230201100
53202000440440421334
643414245303421040
72513322220306164
oct275502243544120
951122820054486
1013031242123344
114174578500445
121565660754780
13736ac14a2b33
14330a03406ca4
15178e8c36c449
hexbda128ec850

13031242123344 has 40 divisors (see below), whose sum is σ = 33665020821600. Its totient is φ = 4343621094528.

The previous prime is 13031242123313. The next prime is 13031242123369. The reversal of 13031242123344 is 44332124213031.

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, 2270622 + ... + 5587325.

It is an arithmetic number, because the mean of its divisors is an integer number (841625520540).

Almost surely, 213031242123344 is an apocalyptic number.

It is an amenable number.

13031242123344 is an abundant number, since it is smaller than the sum of its proper divisors (20633778698256).

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

13031242123344 is a wasteful number, since it uses less digits than its factorization.

13031242123344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7892507 (or 7892501 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 13031242123344 its reverse (44332124213031), we get a palindrome (57363366336375).

The spelling of 13031242123344 in words is "thirteen trillion, thirty-one billion, two hundred forty-two million, one hundred twenty-three thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 34549 69098 103647 138196 207294 276392 414588 552784 829176 1658352 7857947 15715894 23573841 31431788 47147682 62863576 94295364 125727152 188590728 377181456 271484210903 542968421806 814452632709 1085936843612 1628905265418 2171873687224 3257810530836 4343747374448 6515621061672 13031242123344