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51042471067 = 731271171747
BaseRepresentation
bin101111100010010111…
…100100110010011011
311212202020102012002101
4233202113210302123
51314013333033232
635240521144231
73454610563000
oct574227446233
9155666365071
1051042471067
111a713164a95
129a8602b077
134a75a2a403
142682d758a7
1514db1651e7
hexbe25e4c9b

51042471067 has 16 divisors (see below), whose sum is σ = 59993497600. Its totient is φ = 43406158824.

The previous prime is 51042471041. The next prime is 51042471071. The reversal of 51042471067 is 76017424015.

It is not a de Polignac number, because 51042471067 - 27 = 51042470939 is a prime.

It is a super-3 number, since 3×510424710673 (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51042471097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542313 + ... + 629434.

It is an arithmetic number, because the mean of its divisors is an integer number (3749593600).

Almost surely, 251042471067 is an apocalyptic number.

51042471067 is a deficient number, since it is larger than the sum of its proper divisors (8951026533).

51042471067 is a wasteful number, since it uses less digits than its factorization.

51042471067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171895 (or 1171881 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 51042471067 in words is "fifty-one billion, forty-two million, four hundred seventy-one thousand, sixty-seven".

Divisors: 1 7 49 127 343 889 6223 43561 1171747 8202229 57415603 148811869 401909221 1041683083 7291781581 51042471067