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80465687484 = 22371382789101
BaseRepresentation
bin100101011110000100…
…0001111001110111100
321200200210101110010120
41022330020033032330
52304243203444414
6100544310534540
75546005026030
oct1127410171674
9250623343116
1080465687484
1131141867a76
1213717967450
137784765040
143c7495c1c0
15215e30a2a9
hex12bc20f3bc

80465687484 has 96 divisors (see below), whose sum is σ = 231362966016. Its totient is φ = 21195820800.

The previous prime is 80465687453. The next prime is 80465687531. The reversal of 80465687484 is 48478656408.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 858534 + ... + 947634.

It is an arithmetic number, because the mean of its divisors is an integer number (2410030896).

Almost surely, 280465687484 is an apocalyptic number.

80465687484 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80465687484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115681483008).

80465687484 is an abundant number, since it is smaller than the sum of its proper divisors (150897278532).

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

80465687484 is a wasteful number, since it uses less digits than its factorization.

80465687484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89955 (or 89953 counting only the distinct ones).

The product of its (nonzero) digits is 41287680, while the sum is 60.

The spelling of 80465687484 in words is "eighty billion, four hundred sixty-five million, six hundred eighty-seven thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 273 364 546 827 1092 1654 2481 3308 4962 5789 9924 10751 11578 17367 21502 23156 32253 34734 43004 64506 69468 75257 89101 129012 150514 178202 225771 267303 301028 356404 451542 534606 623707 903084 1069212 1158313 1247414 1871121 2316626 2494828 3474939 3742242 4633252 6949878 7484484 8108191 13899756 16216382 24324573 32432764 48649146 73686527 97298292 147373054 221059581 294746108 442119162 515805689 884238324 957924851 1031611378 1547417067 1915849702 2063222756 2873774553 3094834134 3831699404 5747549106 6189668268 6705473957 11495098212 13410947914 20116421871 26821895828 40232843742 80465687484