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12297485 = 52459497
BaseRepresentation
bin101110111010…
…010100001101
3212010202222102
4232322110031
511122004420
61115324445
7206345504
oct56722415
925122872
1012297485
116a3a312
124150725
132717525
1418c183b
15112da75
hexbba50d

12297485 has 4 divisors (see below), whose sum is σ = 14756988. Its totient is φ = 9837984.

The previous prime is 12297473. The next prime is 12297487. The reversal of 12297485 is 58479221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58479221 = 71823651.

It can be written as a sum of positive squares in 2 ways, for example, as 1630729 + 10666756 = 1277^2 + 3266^2 .

It is a cyclic number.

It is not a de Polignac number, because 12297485 - 210 = 12296461 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 (12297487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1229744 + ... + 1229753.

It is an arithmetic number, because the mean of its divisors is an integer number (3689247).

Almost surely, 212297485 is an apocalyptic number.

It is an amenable number.

12297485 is a deficient number, since it is larger than the sum of its proper divisors (2459503).

12297485 is an equidigital number, since it uses as much as digits as its factorization.

12297485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459502.

The product of its digits is 40320, while the sum is 38.

The square root of 12297485 is about 3506.7770103045. Note that the first 3 decimals coincide. The cubic root of 12297485 is about 230.8192898383.

The spelling of 12297485 in words is "twelve million, two hundred ninety-seven thousand, four hundred eighty-five".

Divisors: 1 5 2459497 12297485