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12148591297 = 431511871029
BaseRepresentation
bin10110101000001110…
…01100101011000001
31011100122201101021211
423110013030223001
5144340014410142
65325254250121
7610024215343
oct132407145301
934318641254
1012148591297
1151746214a7
122430656941
1311b7b8c47b
1483365b293
154b1822917
hex2d41ccac1

12148591297 has 8 divisors (see below), whose sum is σ = 12513448640. Its totient is φ = 11787476400.

The previous prime is 12148591261. The next prime is 12148591321. The reversal of 12148591297 is 79219584121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12148591297 - 215 = 12148558529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12148591297.

It is not an unprimeable number, because it can be changed into a prime (12148591207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 929022 + ... + 942007.

It is an arithmetic number, because the mean of its divisors is an integer number (1564181080).

Almost surely, 212148591297 is an apocalyptic number.

It is an amenable number.

12148591297 is a deficient number, since it is larger than the sum of its proper divisors (364857343).

12148591297 is a wasteful number, since it uses less digits than its factorization.

12148591297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871223.

The product of its digits is 362880, while the sum is 49.

The spelling of 12148591297 in words is "twelve billion, one hundred forty-eight million, five hundred ninety-one thousand, two hundred ninety-seven".

Divisors: 1 43 151 6493 1871029 80454247 282525379 12148591297