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531056005285 = 51379103418891
BaseRepresentation
bin1111011101001010110…
…01111001000010100101
31212202202012120020112111
413232211121321002211
532200100314132120
61043544101121021
753240030364661
oct7564531710245
91782665506474
10531056005285
111952462a7973
1286b096b9171
133b10322b970
141b9bb9d78a1
15dc3230275a
hex7ba56790a5

531056005285 has 16 divisors (see below), whose sum is σ = 694974954240. Its totient is φ = 387200324160.

The previous prime is 531056005279. The next prime is 531056005297. The reversal of 531056005285 is 582500650135.

It is not a de Polignac number, because 531056005285 - 229 = 530519134373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51704311 + ... + 51714580.

It is an arithmetic number, because the mean of its divisors is an integer number (43435934640).

Almost surely, 2531056005285 is an apocalyptic number.

It is an amenable number.

531056005285 is a deficient number, since it is larger than the sum of its proper divisors (163918948955).

531056005285 is a wasteful number, since it uses less digits than its factorization.

531056005285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103418988.

The product of its (nonzero) digits is 180000, while the sum is 40.

The spelling of 531056005285 in words is "five hundred thirty-one billion, fifty-six million, five thousand, two hundred eighty-five".

Divisors: 1 5 13 65 79 395 1027 5135 103418891 517094455 1344445583 6722227915 8170092389 40850461945 106211201057 531056005285