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12231105608 = 236126412
BaseRepresentation
bin10110110010000011…
…11101110001001000
31011120101222112122102
423121001331301020
5200022130334413
65341403012532
7612045453011
oct133101756110
934511875572
1012231105608
11520715a747
12245420a148
1311cbcc00c7
148405ba008
154b8bc1458
hex2d907dc48

12231105608 has 36 divisors (see below), whose sum is σ = 23351872635. Its totient is φ = 6005913600.

The previous prime is 12231105599. The next prime is 12231105637. The reversal of 12231105608 is 80650113221.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 4472666884 + 7758438724 = 66878^2 + 88082^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=78202.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19080968 + ... + 19081608.

Almost surely, 212231105608 is an apocalyptic number.

It is an amenable number.

12231105608 is a deficient number, since it is larger than the sum of its proper divisors (11120767027).

12231105608 is an frugal number, since it uses more digits than its factorization.

12231105608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 12231105608 its reverse (80650113221), we get a palindrome (92881218829).

The spelling of 12231105608 in words is "twelve billion, two hundred thirty-one million, one hundred five thousand, six hundred eight".

Divisors: 1 2 4 8 61 122 244 488 641 1282 2564 3721 5128 7442 14884 29768 39101 78202 156404 312808 410881 821762 1643524 2385161 3287048 4770322 9540644 19081288 25063741 50127482 100254964 200509928 1528888201 3057776402 6115552804 12231105608