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808896580855 = 51117865130033
BaseRepresentation
bin10111100010101011111…
…11100100110011110111
32212022220101121212121021
423301111333210303313
5101223110011041410
61415334005002011
7112304132330356
oct13612577446367
92768811555537
10808896580855
11292062039660
121109299b3307
135b381189abc
142b217b3999d
1516094390eda
hexbc55fe4cf7

808896580855 has 16 divisors (see below), whose sum is σ = 1121208524064. Its totient is φ = 553683220480.

The previous prime is 808896580799. The next prime is 808896580879. The reversal of 808896580855 is 558085698808.

It is not a de Polignac number, because 808896580855 - 211 = 808896578807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432564082 + ... + 432565951.

It is an arithmetic number, because the mean of its divisors is an integer number (70075532754).

Almost surely, 2808896580855 is an apocalyptic number.

808896580855 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

808896580855 is a deficient number, since it is larger than the sum of its proper divisors (312311943209).

808896580855 is a wasteful number, since it uses less digits than its factorization.

808896580855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865130066.

The product of its (nonzero) digits is 221184000, while the sum is 70.

The spelling of 808896580855 in words is "eight hundred eight billion, eight hundred ninety-six million, five hundred eighty thousand, eight hundred fifty-five".

Divisors: 1 5 11 17 55 85 187 935 865130033 4325650165 9516430363 14707210561 47582151815 73536052805 161779316171 808896580855