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80128800186 = 2331446396527
BaseRepresentation
bin100101010100000001…
…1000111010110111010
321122211022110210122020
41022220003013112322
52303100433101221
6100451034135310
75534444364231
oct1125003072672
9248738423566
1080128800186
1130a89689616
1213642b81536
13772ca20446
143c41d05b18
15213e961ac6
hex12a80c75ba

80128800186 has 32 divisors (see below), whose sum is σ = 165465980928. Its totient is φ = 25841940720.

The previous prime is 80128800179. The next prime is 80128800197. The reversal of 80128800186 is 68100882108.

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 15 ways as a sum of consecutive naturals, for example, 781855 + ... + 878381.

It is an arithmetic number, because the mean of its divisors is an integer number (5170811904).

Almost surely, 280128800186 is an apocalyptic number.

80128800186 is an abundant number, since it is smaller than the sum of its proper divisors (85337180742).

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

80128800186 is a wasteful number, since it uses less digits than its factorization.

80128800186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101026.

The product of its (nonzero) digits is 49152, while the sum is 42.

The spelling of 80128800186 in words is "eighty billion, one hundred twenty-eight million, eight hundred thousand, one hundred eighty-six".

Divisors: 1 2 3 6 31 62 93 186 4463 8926 13389 26778 96527 138353 193054 276706 289581 415059 579162 830118 2992337 5984674 8977011 17954022 430800001 861600002 1292400003 2584800006 13354800031 26709600062 40064400093 80128800186