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238829784074908 = 22135386658121943
BaseRepresentation
bin110110010011011011100100…
…011100010000101010011100
31011022121220102021211201201221
4312103123210130100222130
5222300441344210344113
62203540515501143124
7101206611456212035
oct6623334434205234
91138556367751657
10238829784074908
116a10a162915674
122295298b55aaa4
13a335723991cc0
1442d95cd493a8c
151c9279dc9698d
hexd936e4710a9c

238829784074908 has 24 divisors (see below), whose sum is σ = 458594781327648. Its totient is φ = 108149336183616.

The previous prime is 238829784074881. The next prime is 238829784074941. The reversal of 238829784074908 is 809470487928832.

It is a happy number.

It is a super-2 number, since 2×2388297840749082 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43329058216 + ... + 43329063727.

It is an arithmetic number, because the mean of its divisors is an integer number (19108115888652).

Almost surely, 2238829784074908 is an apocalyptic number.

It is an amenable number.

238829784074908 is a deficient number, since it is larger than the sum of its proper divisors (219764997252740).

238829784074908 is a wasteful number, since it uses less digits than its factorization.

238829784074908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86658122013 (or 86658122011 counting only the distinct ones).

The product of its (nonzero) digits is 3121348608, while the sum is 79.

The spelling of 238829784074908 in words is "two hundred thirty-eight trillion, eight hundred twenty-nine billion, seven hundred eighty-four million, seventy-four thousand, nine hundred eight".

Divisors: 1 2 4 13 26 52 53 106 212 689 1378 2756 86658121943 173316243886 346632487772 1126555585259 2253111170518 4506222341036 4592880462979 9185760925958 18371521851916 59707446018727 119414892037454 238829784074908