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12848169897 = 325749248317
BaseRepresentation
bin10111111011100111…
…11000001110101001
31020011102002122201100
423331303320032221
5202303112414042
65522524512013
7633250433163
oct137563701651
936142078640
1012848169897
1154a3503232
1225a69ab609
131299ab1ac4
1489c525933
15502e6024c
hex2fdcf83a9

12848169897 has 12 divisors (see below), whose sum is σ = 18561770500. Its totient is φ = 8563922208.

The previous prime is 12848169857. The next prime is 12848169913. The reversal of 12848169897 is 79896184821.

12848169897 is a `hidden beast` number, since 1 + 2 + 8 + 481 + 69 + 8 + 97 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2439273321 + 10408896576 = 49389^2 + 102024^2 .

It is not a de Polignac number, because 12848169897 - 210 = 12848168873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12848169857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72418 + ... + 175899.

Almost surely, 212848169897 is an apocalyptic number.

It is an amenable number.

12848169897 is a deficient number, since it is larger than the sum of its proper divisors (5713600603).

12848169897 is a wasteful number, since it uses less digits than its factorization.

12848169897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254072 (or 254069 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 63.

The spelling of 12848169897 in words is "twelve billion, eight hundred forty-eight million, one hundred sixty-nine thousand, eight hundred ninety-seven".

Divisors: 1 3 9 5749 17247 51741 248317 744951 2234853 1427574433 4282723299 12848169897