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80982805199 = 499916199801
BaseRepresentation
bin100101101101011110…
…0111000101011001111
321202000211102202021112
41023122330320223033
52311323044231244
6101111502322235
75564554325612
oct1133274705317
9252024382245
1080982805199
113138775618a
1213840b8937b
13783793165a
143cc34cc179
15218e90539e
hex12daf38acf

80982805199 has 4 divisors (see below), whose sum is σ = 80999010000. Its totient is φ = 80966600400.

The previous prime is 80982805073. The next prime is 80982805217. The reversal of 80982805199 is 99150828908.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80982805199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80982805699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8094902 + ... + 8104899.

It is an arithmetic number, because the mean of its divisors is an integer number (20249752500).

Almost surely, 280982805199 is an apocalyptic number.

80982805199 is a deficient number, since it is larger than the sum of its proper divisors (16204801).

80982805199 is a wasteful number, since it uses less digits than its factorization.

80982805199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16204800.

The product of its (nonzero) digits is 3732480, while the sum is 59.

The spelling of 80982805199 in words is "eighty billion, nine hundred eighty-two million, eight hundred five thousand, one hundred ninety-nine".

Divisors: 1 4999 16199801 80982805199