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86480 = 2452347
BaseRepresentation
bin10101000111010000
311101121222
4111013100
510231410
61504212
7510062
oct250720
9141558
1086480
1159a79
1242068
1330494
1423732
151a955
hex151d0

86480 has 40 divisors (see below), whose sum is σ = 214272. Its totient is φ = 32384.

The previous prime is 86477. The next prime is 86491. The reversal of 86480 is 8468.

86480 is nontrivially palindromic in base 14.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1817 + ... + 1863.

286480 is an apocalyptic number.

86480 is a gapful number since it is divisible by the number (80) 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 86480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107136).

86480 is an abundant number, since it is smaller than the sum of its proper divisors (127792).

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

86480 is a wasteful number, since it uses less digits than its factorization.

86480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 86480 is about 294.0748204114. The cubic root of 86480 is about 44.2220183357. Note that the first 3 decimals are identical.

The spelling of 86480 in words is "eighty-six thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 47 80 92 94 115 184 188 230 235 368 376 460 470 752 920 940 1081 1840 1880 2162 3760 4324 5405 8648 10810 17296 21620 43240 86480