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83883439806 = 2370571981093
BaseRepresentation
bin100111000011111010…
…1111011011010111110
322000111222111020220220
41032013311323122332
52333243130033211
6102311401122210
76026465321355
oct1160765733276
9260458436826
1083883439806
1132636018971
1214310489366
137baa8651aa
1440ba82a99c
1522ae3bc806
hex1387d7b6be

83883439806 has 16 divisors (see below), whose sum is σ = 167790737424. Its totient is φ = 27957170304.

The previous prime is 83883439793. The next prime is 83883439823. The reversal of 83883439806 is 60893438838.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 83883439806.

It is a congruent number.

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, 948205 + ... + 1032888.

It is an arithmetic number, because the mean of its divisors is an integer number (10486921089).

Almost surely, 283883439806 is an apocalyptic number.

83883439806 is an abundant number, since it is smaller than the sum of its proper divisors (83907297618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83883439806 is a wasteful number, since it uses less digits than its factorization.

83883439806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988155.

The product of its (nonzero) digits is 23887872, while the sum is 60.

The spelling of 83883439806 in words is "eighty-three billion, eight hundred eighty-three million, four hundred thirty-nine thousand, eight hundred six".

Divisors: 1 2 3 6 7057 14114 21171 42342 1981093 3962186 5943279 11886558 13980573301 27961146602 41941719903 83883439806