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12318354145 = 523338931607
BaseRepresentation
bin10110111100011101…
…10010101011100001
31011210111011020010201
423132032302223201
5200211444313040
65354201025201
7614155165636
oct133616625341
934714136121
1012318354145
115251431879
122479485201
1312140ba866
1484c00c18d
154c16a7a9a
hex2de3b2ae1

12318354145 has 16 divisors (see below), whose sum is σ = 15429761280. Its totient is φ = 9423139264.

The previous prime is 12318354143. The next prime is 12318354149. The reversal of 12318354145 is 54145381321.

It is a cyclic number.

It is not a de Polignac number, because 12318354145 - 21 = 12318354143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12318354143) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 373932 + ... + 405538.

It is an arithmetic number, because the mean of its divisors is an integer number (964360080).

Almost surely, 212318354145 is an apocalyptic number.

It is an amenable number.

12318354145 is a deficient number, since it is larger than the sum of its proper divisors (3111407135).

12318354145 is a wasteful number, since it uses less digits than its factorization.

12318354145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35024.

The product of its digits is 57600, while the sum is 37.

The spelling of 12318354145 in words is "twelve billion, three hundred eighteen million, three hundred fifty-four thousand, one hundred forty-five".

Divisors: 1 5 23 115 3389 16945 31607 77947 158035 389735 726961 3634805 107116123 535580615 2463670829 12318354145