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12444300213 = 32327841399
BaseRepresentation
bin10111001011011110…
…01111001110110101
31012010021010221122220
423211233033032311
5200441220101323
65414500312553
7620244543432
oct134557171665
935107127586
1012444300213
115306534a34
1224b36a2759
131234217067
14860a34b89
154cc7850e3
hex2e5bcf3b5

12444300213 has 12 divisors (see below), whose sum is σ = 17345176800. Its totient is φ = 7935494776.

The previous prime is 12444300199. The next prime is 12444300223. The reversal of 12444300213 is 31200344421.

It is not a de Polignac number, because 12444300213 - 29 = 12444299701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12444300223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3919113 + ... + 3922286.

It is an arithmetic number, because the mean of its divisors is an integer number (1445431400).

Almost surely, 212444300213 is an apocalyptic number.

It is an amenable number.

12444300213 is a deficient number, since it is larger than the sum of its proper divisors (4900876587).

12444300213 is an equidigital number, since it uses as much as digits as its factorization.

12444300213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7841448 (or 7841425 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12444300213 its reverse (31200344421), we get a palindrome (43644644634).

The spelling of 12444300213 in words is "twelve billion, four hundred forty-four million, three hundred thousand, two hundred thirteen".

Divisors: 1 3 23 69 529 1587 7841399 23524197 180352177 541056531 4148100071 12444300213