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83893466439838 = 21131123010947859
BaseRepresentation
bin10011000100110011111000…
…010001000010000010011110
3102000001010200220212010200201
4103010303320101002002132
541444002304402033323
6454232043150414114
723446050206605546
oct2304637021020236
9360033626763621
1083893466439838
1124805023786210
1294ab14820133a
1337a7173679a93
1416a0673254326
159a73dccc98ad
hex4c4cf844209e

83893466439838 has 16 divisors (see below), whose sum is σ = 141708611934720. Its totient is φ = 36903284357400.

The previous prime is 83893466439833. The next prime is 83893466439847.

83893466439838 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×838934664398382 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83893466439833) 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 7 ways as a sum of consecutive naturals, for example, 61505473248 + ... + 61505474611.

It is an arithmetic number, because the mean of its divisors is an integer number (8856788245920).

Almost surely, 283893466439838 is an apocalyptic number.

83893466439838 is a deficient number, since it is larger than the sum of its proper divisors (57815145494882).

83893466439838 is a wasteful number, since it uses less digits than its factorization.

83893466439838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123010947903.

The product of its digits is 15479341056, while the sum is 82.

The spelling of 83893466439838 in words is "eighty-three trillion, eight hundred ninety-three billion, four hundred sixty-six million, four hundred thirty-nine thousand, eight hundred thirty-eight".

Divisors: 1 2 11 22 31 62 341 682 123010947859 246021895718 1353120426449 2706240852898 3813339383629 7626678767258 41946733219919 83893466439838