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87051824728066 = 21110534137562783
BaseRepresentation
bin10011110010110001010101…
…000101110000100000000010
3102102020001222100011221222001
4103302301111011300200002
542402224114112244231
6505051020045534214
724223200240241312
oct2362612505604002
9372201870157861
1087051824728066
1125812520693760
12991b287b7436a
133975c4b297ac3
14176d48b9cd442
15a0e63ecbcb61
hex4f2c55170802

87051824728066 has 16 divisors (see below), whose sum is σ = 142449796516608. Its totient is φ = 39568634558800.

The previous prime is 87051824728051. The next prime is 87051824728093. The reversal of 87051824728066 is 66082742815078.

It is a super-3 number, since 3×870518247280663 (a number of 43 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 = 87051824727989 and 87051824728007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16463890 + ... + 21098893.

It is an arithmetic number, because the mean of its divisors is an integer number (8903112282288).

Almost surely, 287051824728066 is an apocalyptic number.

87051824728066 is a deficient number, since it is larger than the sum of its proper divisors (55397971788542).

87051824728066 is a wasteful number, since it uses less digits than its factorization.

87051824728066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37668137.

The product of its (nonzero) digits is 72253440, while the sum is 64.

The spelling of 87051824728066 in words is "eighty-seven trillion, fifty-one billion, eight hundred twenty-four million, seven hundred twenty-eight thousand, sixty-six".

Divisors: 1 2 11 22 105341 210682 1158751 2317502 37562783 75125566 413190613 826381226 3956901124003 7913802248006 43525912364033 87051824728066