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12213064923238 = 279307281989317
BaseRepresentation
bin1011000110111001001101…
…1001010111100001100110
31121020120001111022122200201
42301232103121113201212
53100044324110020423
641550334330501114
72400236063664514
oct261562331274146
947216044278621
1012213064923238
113989593834223
121452b8289479a
136a78c169256a
14303188cc94b4
15162a5336d2ad
hexb1b93657866

12213064923238 has 32 divisors (see below), whose sum is σ = 18618730099200. Its totient is φ = 6007396303584.

The previous prime is 12213064923119. The next prime is 12213064923239. The reversal of 12213064923238 is 83232946031221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213064923239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136693756 + ... + 136783072.

It is an arithmetic number, because the mean of its divisors is an integer number (581835315600).

Almost surely, 212213064923238 is an apocalyptic number.

12213064923238 is a deficient number, since it is larger than the sum of its proper divisors (6405665175962).

12213064923238 is a wasteful number, since it uses less digits than its factorization.

12213064923238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92524.

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 12213064923238 in words is "twelve trillion, two hundred thirteen billion, sixty-four million, nine hundred twenty-three thousand, two hundred thirty-eight".

Divisors: 1 2 79 158 307 614 2819 5638 24253 48506 89317 178634 222701 445402 865433 1730866 7056043 14112086 27420319 54840638 68369207 136738414 251784623 503569246 2166205201 4332410402 19890985217 39781970434 77297879261 154595758522 6106532461619 12213064923238