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51112531532 = 2243297165881
BaseRepresentation
bin101111100110100010…
…110101011001001100
311212221010020121222102
4233212202311121030
51314134302002112
635251502534232
73456421230626
oct574642653114
9155833217872
1051112531532
111a7497674a7
129aa5597378
134a873ba5ca
14268c3b1c16
1514e23a3bc2
hexbe68b564c

51112531532 has 12 divisors (see below), whose sum is σ = 91527091656. Its totient is φ = 24961933920.

The previous prime is 51112531531. The next prime is 51112531573. The reversal of 51112531532 is 23513521115.

It is a super-3 number, since 3×511125315323 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 51112531495 and 51112531504.

It is not an unprimeable number, because it can be changed into a prime (51112531531) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 148582769 + ... + 148583112.

It is an arithmetic number, because the mean of its divisors is an integer number (7627257638).

Almost surely, 251112531532 is an apocalyptic number.

It is an amenable number.

51112531532 is a deficient number, since it is larger than the sum of its proper divisors (40414560124).

51112531532 is a wasteful number, since it uses less digits than its factorization.

51112531532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297165928 (or 297165926 counting only the distinct ones).

The product of its digits is 4500, while the sum is 29.

The spelling of 51112531532 in words is "fifty-one billion, one hundred twelve million, five hundred thirty-one thousand, five hundred thirty-two".

Divisors: 1 2 4 43 86 172 297165881 594331762 1188663524 12778132883 25556265766 51112531532