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12086280 = 2333519231
BaseRepresentation
bin101110000110…
…110000001000
3211202001021000
4232012300020
511043230110
61111015000
7204505653
oct56066010
924661230
1012086280
116905668
12406a460
13267235b
14186889a
1510db1c0
hexb86c08

12086280 has 192 divisors, whose sum is σ = 43891200. Its totient is φ = 2954880.

The previous prime is 12086273. The next prime is 12086317. The reversal of 12086280 is 8268021.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 389865 + ... + 389895.

It is an arithmetic number, because the mean of its divisors is an integer number (228600).

Almost surely, 212086280 is an apocalyptic number.

12086280 is a gapful number since it is divisible by the number (10) 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 12086280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21945600).

12086280 is an abundant number, since it is smaller than the sum of its proper divisors (31804920).

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

12086280 is a wasteful number, since it uses less digits than its factorization.

12086280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 12086280 is about 3476.5327554907. The cubic root of 12086280 is about 229.4902383818.

The spelling of 12086280 in words is "twelve million, eighty-six thousand, two hundred eighty".