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38930442811293 = 3116173291790821
BaseRepresentation
bin10001101101000001100110…
…01101101111011110011101
312002211201021111101021212010
420312200303031233132131
520100314021324430133
6214444222025501433
711125426443664035
oct1066406315573635
9162751244337763
1038930442811293
111144a343063860
124448b92641879
1318951818351c7
1498835a1a68c5
15477a0bbb3263
hex23683336f79d

38930442811293 has 64 divisors (see below), whose sum is σ = 58363455285504. Its totient is φ = 22881408768000.

The previous prime is 38930442811241. The next prime is 38930442811313. The reversal of 38930442811293 is 39211824403983.

It is not a de Polignac number, because 38930442811293 - 210 = 38930442810269 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38930432811293) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 428604823 + ... + 428695643.

It is an arithmetic number, because the mean of its divisors is an integer number (911928988836).

Almost surely, 238930442811293 is an apocalyptic number.

38930442811293 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

38930442811293 is a deficient number, since it is larger than the sum of its proper divisors (19433012474211).

38930442811293 is a wasteful number, since it uses less digits than its factorization.

38930442811293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93886.

The product of its (nonzero) digits is 8957952, while the sum is 57.

The spelling of 38930442811293 in words is "thirty-eight trillion, nine hundred thirty billion, four hundred forty-two million, eight hundred eleven thousand, two hundred ninety-three".

Divisors: 1 3 11 33 61 73 183 219 671 803 2013 2409 2917 4453 8751 13359 32087 48983 90821 96261 146949 177937 212941 272463 533811 638823 999031 1957307 2342351 2997093 5540081 5871921 6629933 7027053 12989401 16620243 19889799 38968203 60940891 72929263 142883411 182822673 218787789 264924857 404425913 428650233 794774571 1213277739 2914173427 4448685043 8742520281 13346055129 16160416277 19339514561 48481248831 58018543683 177764579047 212734660171 533293737141 638203980513 1179710388221 3539131164663 12976814270431 38930442811293