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12240149297 = 10121498053
BaseRepresentation
bin10110110011001000…
…11101101100110001
31011121001000000020212
423121210131230301
5200031434234142
65342324513505
7612215360315
oct133144355461
934531000225
1012240149297
115211277372
12245724b895
131200b385bc
14841891b45
154b98aad82
hex2d991db31

12240149297 has 12 divisors (see below), whose sum is σ = 12447054300. Its totient is φ = 12036129600.

The previous prime is 12240149291. The next prime is 12240149309. The reversal of 12240149297 is 79294104221.

It can be written as a sum of positive squares in 6 ways, for example, as 2948924416 + 9291224881 = 54304^2 + 96391^2 .

It is not a de Polignac number, because 12240149297 - 24 = 12240149281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12240149291) 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, 1515923 + ... + 1523975.

It is an arithmetic number, because the mean of its divisors is an integer number (1037254525).

Almost surely, 212240149297 is an apocalyptic number.

It is an amenable number.

12240149297 is a deficient number, since it is larger than the sum of its proper divisors (206905003).

12240149297 is an equidigital number, since it uses as much as digits as its factorization.

12240149297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8404 (or 8303 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 12240149297 in words is "twelve billion, two hundred forty million, one hundred forty-nine thousand, two hundred ninety-seven".

Divisors: 1 101 149 8053 10201 15049 813353 1199897 1519949 82148653 121189597 12240149297