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800008804880 = 24510991744129
BaseRepresentation
bin10111010010001000011…
…11011001101000010000
32211110221222201002000022
423221010033121220100
5101101404223224010
61411304033043012
7111540651433145
oct13510417315020
92743858632008
10800008804880
11289311128a5a
1210b0693b6468
135a595a4026c
142aa135b83cc
1515c23e80d55
hexba443d9a10

800008804880 has 40 divisors (see below), whose sum is σ = 1877084899800. Its totient is φ = 317067706368.

The previous prime is 800008804879. The next prime is 800008804913. The reversal of 800008804880 is 88408800008.

It can be written as a sum of positive squares in 4 ways, for example, as 403189440784 + 396819364096 = 634972^2 + 629936^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45863345 + ... + 45880784.

It is an arithmetic number, because the mean of its divisors is an integer number (46927122495).

Almost surely, 2800008804880 is an apocalyptic number.

800008804880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

800008804880 is an abundant number, since it is smaller than the sum of its proper divisors (1077076094920).

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

800008804880 is a wasteful number, since it uses less digits than its factorization.

800008804880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91744251 (or 91744245 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 44.

The spelling of 800008804880 in words is "eight hundred billion, eight million, eight hundred four thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 109 218 436 545 872 1090 1744 2180 4360 8720 91744129 183488258 366976516 458720645 733953032 917441290 1467906064 1834882580 3669765160 7339530320 10000110061 20000220122 40000440244 50000550305 80000880488 100001100610 160001760976 200002201220 400004402440 800008804880