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13554212146 = 237977187477
BaseRepresentation
bin11001001111110010…
…01101110100110010
31021222121122022121021
430213321031310302
5210224334242041
610120545450054
7656612621326
oct144771156462
937877568537
1013554212146
115825aaa222
12276334092a
131380158497
149281d3986
15544e27cd1
hex327e4dd32

13554212146 has 16 divisors (see below), whose sum is σ = 20902297176. Its totient is φ = 6587156736.

The previous prime is 13554212143. The next prime is 13554212167. The reversal of 13554212146 is 64121245531.

It can be written as a sum of positive squares in 4 ways, for example, as 13523131521 + 31080625 = 116289^2 + 5575^2 .

It is not an unprimeable number, because it can be changed into a prime (13554212141) 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 7 ways as a sum of consecutive naturals, for example, 21441 + ... + 166036.

Almost surely, 213554212146 is an apocalyptic number.

13554212146 is a deficient number, since it is larger than the sum of its proper divisors (7348085030).

13554212146 is a wasteful number, since it uses less digits than its factorization.

13554212146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188493.

The product of its digits is 28800, while the sum is 34.

Adding to 13554212146 its reverse (64121245531), we get a palindrome (77675457677).

The spelling of 13554212146 in words is "thirteen billion, five hundred fifty-four million, two hundred twelve thousand, one hundred forty-six".

Divisors: 1 2 37 74 977 1954 36149 72298 187477 374954 6936649 13873298 183165029 366330058 6777106073 13554212146