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12315314045 = 531389204251
BaseRepresentation
bin10110111100000110…
…01100011101111101
31011210021102202220102
423132003030131331
5200210210022140
65354011530445
7614120304446
oct133603143575
934707382812
1012315314045
11524a7457a1
122478459a25
131213594b98
1484b85a2cd
154c12a6e15
hex2de0cc77d

12315314045 has 16 divisors (see below), whose sum is σ = 15294389760. Its totient is φ = 9509880000.

The previous prime is 12315314041. The next prime is 12315314047. The reversal of 12315314045 is 54041351321.

It is not a de Polignac number, because 12315314045 - 22 = 12315314041 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12315313999 and 12315314017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12315314041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41831 + ... + 162420.

It is an arithmetic number, because the mean of its divisors is an integer number (955899360).

Almost surely, 212315314045 is an apocalyptic number.

It is an amenable number.

12315314045 is a deficient number, since it is larger than the sum of its proper divisors (2979075715).

12315314045 is a wasteful number, since it uses less digits than its factorization.

12315314045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204676.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 12315314045 its reverse (54041351321), we get a palindrome (66356665366).

The spelling of 12315314045 in words is "twelve billion, three hundred fifteen million, three hundred fourteen thousand, forty-five".

Divisors: 1 5 31 155 389 1945 12059 60295 204251 1021255 6331781 31658905 79453639 397268195 2463062809 12315314045