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27030169881 = 3511131745757
BaseRepresentation
bin11001001011000111…
…111010100100011001
32120202210000220100000
4121023013322210121
5420324210414011
620230102203213
71644555440001
oct311307724431
976683026300
1027030169881
111051090a780
1252a4423509
13271a014c80
141445c57001
15a83044356
hex64b1fa919

27030169881 has 96 divisors (see below), whose sum is σ = 50367477888. Its totient is φ = 14231946240.

The previous prime is 27030169819. The next prime is 27030169889. The reversal of 27030169881 is 18896103072.

It is not a de Polignac number, because 27030169881 - 226 = 26963061017 is a prime.

It is a super-2 number, since 2×270301698812 (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (27030169889) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 567855 + ... + 613611.

It is an arithmetic number, because the mean of its divisors is an integer number (524661228).

Almost surely, 227030169881 is an apocalyptic number.

It is an amenable number.

27030169881 is a deficient number, since it is larger than the sum of its proper divisors (23337308007).

27030169881 is a wasteful number, since it uses less digits than its factorization.

27030169881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45813 (or 45801 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 27030169881 in words is "twenty-seven billion, thirty million, one hundred sixty-nine thousand, eight hundred eighty-one".

Divisors: 1 3 9 11 13 17 27 33 39 51 81 99 117 143 153 187 221 243 297 351 429 459 561 663 891 1053 1287 1377 1683 1989 2431 2673 3159 3861 4131 5049 5967 7293 11583 15147 17901 21879 34749 45441 45757 53703 65637 137271 196911 411813 503327 590733 594841 777869 1235439 1509981 1784523 2333607 3706317 4529943 5353569 6543251 7000821 8556559 10112297 11118951 13589829 16060707 19629753 21002463 25669677 30336891 40769487 48182121 58889259 63007389 77009031 91010673 111235267 122308461 144546363 176667777 189022167 231027093 273032019 333705801 530003331 693081279 819096057 1001117403 1590009993 2079243837 2457288171 3003352209 9010056627 27030169881