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86000080 = 24519291951
BaseRepresentation
bin1010010000001…
…00000111010000
312222211020221011
411020010013100
5134004000310
612311140304
72062663045
oct510040720
9188736834
1086000080
11445aa151
1224974694
1314a8142a
14b5c91cc
15783b78a
hex52041d0

86000080 has 80 divisors (see below), whose sum is σ = 217843200. Its totient is φ = 31449600.

The previous prime is 86000071. The next prime is 86000081. The reversal of 86000080 is 8000068.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86000081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43105 + ... + 45055.

It is an arithmetic number, because the mean of its divisors is an integer number (2723040).

Almost surely, 286000080 is an apocalyptic number.

86000080 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 86000080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108921600).

86000080 is an abundant number, since it is smaller than the sum of its proper divisors (131843120).

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

86000080 is a wasteful number, since it uses less digits than its factorization.

86000080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012 (or 2006 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 86000080 is about 9273.6228088056. The cubic root of 86000080 is about 441.4006331125.

The spelling of 86000080 in words is "eighty-six million, eighty", and thus it is an aban number and an uban number.

Divisors: 1 2 4 5 8 10 16 19 20 29 38 40 58 76 80 95 116 145 152 190 232 290 304 380 464 551 580 760 1102 1160 1520 1951 2204 2320 2755 3902 4408 5510 7804 8816 9755 11020 15608 19510 22040 31216 37069 39020 44080 56579 74138 78040 113158 148276 156080 185345 226316 282895 296552 370690 452632 565790 593104 741380 905264 1075001 1131580 1482760 2150002 2263160 2965520 4300004 4526320 5375005 8600008 10750010 17200016 21500020 43000040 86000080