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51086517142527 = 33195326344316127
BaseRepresentation
bin10111001110110100000011…
…01101010000001111111111
320200212211020012211220111000
423213122001231100033333
523144000141342030102
6300352453314301343
713521610342642236
oct1347320155201777
9220784205756430
1051086517142527
1115306741116769
125890aab287853
132267590097079
14c8885a173b1d
155d8d26ad001c
hex2e7681b503ff

51086517142527 has 128 divisors (see below), whose sum is σ = 81667856793600. Its totient is φ = 31462886961792.

The previous prime is 51086517142501. The next prime is 51086517142541. The reversal of 51086517142527 is 72524171568015.

51086517142527 is a `hidden beast` number, since 5 + 1 + 0 + 8 + 6 + 5 + 1 + 71 + 42 + 527 = 666.

It is not a de Polignac number, because 51086517142527 - 210 = 51086517141503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51086517142547) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3167755138 + ... + 3167771264.

It is an arithmetic number, because the mean of its divisors is an integer number (638030131200).

Almost surely, 251086517142527 is an apocalyptic number.

51086517142527 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

51086517142527 is a deficient number, since it is larger than the sum of its proper divisors (30581339651073).

51086517142527 is a wasteful number, since it uses less digits than its factorization.

51086517142527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16914 (or 16908 counting only the distinct ones).

The product of its (nonzero) digits is 4704000, while the sum is 54.

The spelling of 51086517142527 in words is "fifty-one trillion, eighty-six billion, five hundred seventeen million, one hundred forty-two thousand, five hundred twenty-seven".

Divisors: 1 3 9 19 27 53 57 159 171 263 443 477 513 789 1007 1329 1431 2367 3021 3987 4997 7101 8417 9063 11961 13939 14991 16127 23479 25251 27189 41817 44973 48381 70437 75753 116509 125451 134919 145143 211311 227259 264841 306413 349527 376353 435429 446101 633933 794523 854731 919239 1048581 1338303 2213671 2383569 2564193 2757717 3145743 4014909 4241401 6174977 6641013 7144261 7150707 7692579 8273151 12044727 12724203 16239889 18524931 19923039 21432783 23077737 38172609 48719667 55574793 59769117 64298349 80586619 114517827 117324563 135740959 146159001 166724379 192895047 224794253 241759857 351973689 378645833 407222877 438477003 674382759 725279571 1055921067 1135937499 1221668631 1878940643 2023148277 2175838713 3167763201 3407812497 3665005893 4271090807 5636821929 6069444831 7194270827 10223437491 12813272421 16910465787 21582812481 35699872217 38439817263 50731397361 64748437443 99583854079 107099616651 115319451789 194245312329 298751562237 321298849953 896254686711 963896549859 1892093227501 2688764060133 5676279682503 17028839047509 51086517142527