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27812433031428 = 22319149818686949
BaseRepresentation
bin1100101001011100101100…
…01100001111000100000100
310122110211202021111122211010
412110232112030033010010
512121134330324001203
6135052504431042220
75600245006065153
oct624562614170404
9118424667448733
1027812433031428
118953206417661
12315229b670370
131269916658856
146c21b3b5959a
153336ea133303
hex194b9630f104

27812433031428 has 48 divisors (see below), whose sum is σ = 68769703800000. Its totient is φ = 8723928117888.

The previous prime is 27812433031363. The next prime is 27812433031451. The reversal of 27812433031428 is 82413033421872.

It is a super-2 number, since 2×278124330314282 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409309503 + ... + 409377446.

It is an arithmetic number, because the mean of its divisors is an integer number (1432702162500).

Almost surely, 227812433031428 is an apocalyptic number.

It is an amenable number.

27812433031428 is an abundant number, since it is smaller than the sum of its proper divisors (40957270768572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27812433031428 is a wasteful number, since it uses less digits than its factorization.

27812433031428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818687124 (or 818687122 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 48.

The spelling of 27812433031428 in words is "twenty-seven trillion, eight hundred twelve billion, four hundred thirty-three million, thirty-one thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 149 228 298 447 596 894 1788 2831 5662 8493 11324 16986 33972 818686949 1637373898 2456060847 3274747796 4912121694 9824243388 15555052031 31110104062 46665156093 62220208124 93330312186 121984355401 186660624372 243968710802 365953066203 487937421604 731906132406 1463812264812 2317702752619 4635405505238 6953108257857 9270811010476 13906216515714 27812433031428