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12475722287 = 76217286673
BaseRepresentation
bin10111001111001110…
…00110101000101111
31012012110021100122102
423213213012220233
5201022241103122
65421542005315
7621105614120
oct134747065057
935173240572
1012475722287
115322246896
12250211683b
13123a8993c2
14864c94047
154d03e0492
hex2e79c6a2f

12475722287 has 8 divisors (see below), whose sum is σ = 14260311456. Its totient is φ = 10691718912.

The previous prime is 12475722263. The next prime is 12475722293. The reversal of 12475722287 is 78222757421.

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

It is not a de Polignac number, because 12475722287 - 26 = 12475722223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12475721287) 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, 99818 + ... + 186855.

It is an arithmetic number, because the mean of its divisors is an integer number (1782538932).

Almost surely, 212475722287 is an apocalyptic number.

12475722287 is a deficient number, since it is larger than the sum of its proper divisors (1784589169).

12475722287 is an equidigital number, since it uses as much as digits as its factorization.

12475722287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292897.

The product of its digits is 878080, while the sum is 47.

The spelling of 12475722287 in words is "twelve billion, four hundred seventy-five million, seven hundred twenty-two thousand, two hundred eighty-seven".

Divisors: 1 7 6217 43519 286673 2006711 1782246041 12475722287